China Shenzhen Perfect Precision Product Co., Ltd. company news

1、 Whitening of products processed by injection mold. The reasons for whitening of products processed by injection mold include: 1. Excessive load pressure. 2. Poor demoulding. Treatment method: When designing the injection mold, pay attention to the enough demoulding slope. When making the injection mold, ensure that the cavity of the injection mold is kept smooth and clean, and immediately reduce the injection pressure for real-time processing. 2、 The reasons for the dents produced during the processing of injection molds are as follows: 1. Insufficient cooling of injection mold and insufficient cooling time will cause serious deformation. 2. This also happens when the internal pressure of the injection mold is insufficient. 3. The thickness of each part of the product is different. Treatment method: reduce the barrel temperature and mold temperature, force cooling at the place where the dent occurs, fill the flow edge at the place where the dent occurs, and control the difference in the thickness of the designed product.  

Injection mold manufacturing process flow refers to the process of processing and assembling injection mold through certain processing technology and process management. The injection mold manufacturing process includes five steps: 1、 Production technology preparation Production technology preparation is the basis of the whole production, which has a significant impact on the quality, cost, progress and management of injection mold. The work in the production technology preparation stage includes the design of injection mold drawings, the preparation of process and technical documents, the formulation of material quota and processing man hour quota, and the evaluation of injection mold costs. 2、 Preparation of materials Material preparation determines the type, form, size and relevant technical requirements of injection mold parts blanks. Injection mould 3、 Processing of injection mold parts and components Injection mold parts refer to punch, female mold, punch fixing plate and discharge plate. Punch and die are direct working parts. The punch fixing plate is used to fix the punch as its name implies, and the discharge plate is used to remove the workpieces and waste materials that are sleeved on the punch. 4、 Assembly and commissioning The assembly and commissioning team of the Production Department is responsible for completing the assembly and commissioning of injection molds with high quality according to the production schedule. 5、 Mold test identification The mold trial evaluation evaluates the rationality and correctness of the injection mold design and manufacturing quality, and whether the injection mold can meet the expected functional requirements.

With the continuous development of society, China's manufacturing industry has made continuous progress to meet people's increasing material needs. In particular, CNC processing industry is the mainstay of manufacturing industry, playing an indelible role in the Pearl River Delta. CNC processing, also known as computer gong processing, was called in early Hong Kong. In Guangdong, we have all become CNC machining centers, which is a new type of processing technology and can process materials by programming processing programs. Automobile cnc parts processing 1、 Factors affecting CNC processing price: 1. We quote according to the complexity of the drawings sent by the customer. The more complex the drawings are, the more complex the parts to be processed by the CNC lathe are. That is, the higher the machining accuracy and requirements are, naturally, the quotation will be affected. 2. Judge the CNC processing cost according to the quantity of parts. If the customer gives us enough parts but fails to meet the conditions for mold opening, we can use CNC processing equipment to reduce their costs a lot. We can process them in small batches with CNC, which is naturally much cheaper. 3. Judge the CNC processing cost according to the processing accuracy of parts. Customers have high requirements for the accuracy of parts, such as medical parts processing, communication equipment parts processing, robot parts processing, etc... Such parts processing requires high CNC processing systems and tools, and naturally CNC processing costs are very high. 4. The CNC processing cost is affected according to the materials processed for spare parts. The material given by the customer is quite hard. How about titanium alloy materials, titanium steel, etc. This undoubtedly requires very high cutting tools, and it takes a long time to work. 2、 Rough valuation method of CNC processing price: 1. For large parts, the parts with large surface volume and large mass can be divided into two cases: ① The difficulty of CNC processing is average. The ratio of CNC lathe processing cost to the cost of raw materials for the whole part is about 1:1, which is inversely proportional to the purchase volume. We use this valuation method to judge the CNC processing price. ② If the CNC machining of spare parts is difficult, the ratio of CNC lathe machining cost to the cost of raw materials of the whole part is about 1.2~1.5:1, which is inversely proportional to the purchase volume. 2. For small and medium-sized parts processed by CNC, there are also two cases: ① For parts with ordinary CNC processing difficulty, the ratio of CNC lathe processing cost to the cost of raw materials for the whole part is about 2~3:1, which is inversely proportional to the purchase volume. ② For parts with high CNC processing difficulty, the ratio of CNC lathe processing cost to the cost of raw materials for the whole part is about 5-10:1, which is inversely proportional to the purchase volume. Norplat CNC processing factory The above are the four major factors that affect the CNC processing price and the CNC processing price evaluation method. It describes the influence of lathe processing on materials, processing accuracy, parts complexity, and CNC processing price. Therefore, it is very important for you to choose reliable and powerful CNC processing manufacturers. Only by getting familiar with their quotation process and processing service capabilities, and taking multiple considerations, can you experience high-quality CNC processing services.

Surface treatment of aluminum alloy processing includes noise spraying, polishing, wire drawing, high gloss cutting, anodizing, two-color anodizing and other processes. The purpose of mechanical treatment is to eliminate the unevenness of the product surface and remedy other surface defects. Chemical treatment can remove the oil stain and rust on the surface of the product, and form a layer that can make the film-forming material better combine or combine with the active metal body, so as to ensure that the coating has a stable state, increase the adhesion of the protective layer, and thus achieve the role of protecting the body. Processing of aluminum alloy parts 1. Sand blasting for aluminum alloy processing The process of cleaning and roughening metal surfaces by the impact of high-speed sand flow. This method can make the surface of aluminum parts get a certain degree of cleanliness and different roughness, improve the fatigue resistance of the workpiece, have strong adhesion between coatings, extend the durability of the coating, and also be conducive to the leveling and decoration of the coating. 2. Polishing of aluminum alloy processing It is a processing method that uses mechanical, chemical or electrochemical methods to reduce the surface roughness of the workpiece to obtain a bright and flat surface. 3. Wire drawing for aluminum alloy processing Metal wire drawing is the manufacturing process of repeatedly scraping aluminum plates out of lines with sandpaper. Wire drawing can be divided into straight wire drawing, random wire drawing, spiral wire drawing and thread wire drawing. 4. High gloss cutting for aluminum alloy processing The precision engraving machine is used to reinforce the diamond cutter on the high speed rotating (generally 20000 rpm) precision engraving machine spindle to cut parts, creating local highlights on the product surface. In recent years, some high-end electronic products, such as the metal frame of the TV set, have adopted the high gloss milling process. In addition, the anodizing and wire drawing processes have made the TV set full of fashion and scientific sharpness. Aluminum alloy processing and forging 5. Aluminum alloy processing anodizing: Anodic oxidation refers to the electrochemical oxidation of metals or alloys. Under the corresponding electrolyte and specific process conditions, aluminum and its alloys form a layer of oxide film on aluminum products (anodes) under the action of applied current. Anodizing can prolong the service life of aluminum and enhance the aesthetics. It is the most widely used and very successful process at present. 6. Double color anodizing for aluminum alloy processing Two color anodizing refers to anodizing a product and giving different colors to specific areas. Double color anodizing has high cost due to its complex process; However, through the contrast between two colors, it can better reflect the high-end and unique appearance of the product.

We often say that stainless steel parts need to be polished. Why should stainless steel be polished? Stainless steel polishing technologies include mechanical polishing, chemical polishing, electrolytic polishing, ultrasonic polishing, fluid polishing and magnetic abrasive polishing. 1. Mechanical polishing Mechanical polishing is a polishing method to obtain a smooth surface by cutting and removing the convex parts after polishing due to plastic deformation of the material surface. Generally, oilstone strips, wool wheels, sandpaper, etc. are used. Manual operation is the main method. For special parts such as rotary surfaces, turntables and other auxiliary tools can be used. For those with high surface quality requirements, ultra precision polishing can be used. Super precision polishing is to use special abrasive tools, which are pressed on the surface of the workpiece in the polishing fluid containing abrasives to rotate at a high speed. The surface roughness of Ra0.008um can be achieved by using this technology, which is the highest among various polishing methods. This method is often used for optical lens molds. 2. Chemical polishing Chemical polishing is to make the material dissolve preferentially in the concave part of the surface micro convex part in the chemical medium, so as to obtain a smooth surface. The main advantage of this method is that it does not need complex equipment, and can polish workpieces with complex shapes. It can also polish many workpieces at the same time, with high efficiency. The core problem of chemical polishing is the preparation of polishing solution. The surface roughness obtained by chemical polishing is generally 10 um. 3. Electrolytic polishing The basic principle of electrolytic polishing is the same as that of chemical polishing, that is, by selectively dissolving the small protruding parts of the material surface, the surface is smooth. Compared with chemical polishing, it can eliminate the influence of cathodic reaction and has better effect. The electrochemical polishing process is divided into two steps: (1) The macro leveling solution product diffuses into the electrolyte, and the geometric roughness of the material surface decreases, with Ra>1um. (2) Low light level, anodized, surface brightness improved, Ra

1. Ferritic stainless steel Chromium content is 15%~30%. Its corrosion resistance, toughness and weldability increase with the increase of chromium content. Its chloride stress corrosion resistance is superior to other types of stainless steel. With high chromium content, its corrosion resistance and oxidation resistance are relatively good, but its mechanical and technological properties are poor. It is mostly used for acid resistant structures with little stress and as oxidation resistant steel. Application: It is used for nitric acid and food factory equipment, and can also be used to make parts working under high temperature, such as gas turbine parts. 2. Austenitic stainless steel Chromium content is more than 18%, and it also contains about 8% nickel and a small amount of molybdenum, titanium, nitrogen and other elements. It has good comprehensive performance and can resist corrosion of various mediums. Common grades of austenitic stainless steel include 1Cr18Ni9, 0Cr19Ni9, etc. This kind of steel has good plasticity, toughness, weldability, corrosion resistance and non-magnetic or weak magnetic properties. It has good corrosion resistance in oxidizing and reducing media. Application: It is used to make acid resistant equipment, such as corrosion resistant containers and equipment linings, delivery pipes, nitric acid resistant equipment parts, etc., and can also be used as the main material of stainless steel clock accessories. 3. Austenitic ferritic duplex stainless steel A stainless steel in which the austenite and ferrite structures account for about half of each other. It has higher plasticity and toughness, no room temperature brittleness, significantly improved intergranular corrosion resistance and welding performance, while maintaining the 475 ℃ brittleness of ferritic stainless steel, high thermal conductivity, superplasticity and other characteristics. Application: Its superior mechanical and corrosion resistance properties have won the favor of users, and it has become an excellent corrosion resistant engineering material that can save both weight and investment. 4. Precipitation hardening stainless steel The matrix is austenitic or martensitic, and the common grades of precipitation hardening stainless steel are 04Cr13Ni8Mo2Al, etc. Stainless steel that can be hardened (strengthened) by precipitation hardening (also known as age hardening). Application: Widely used in cutting-edge industry and civil industry, such as typical precipitation hardening stainless steel 17-4P, which can be used to make structures with corrosion resistance, wear resistance and high strength below 370 ℃ 5. Martensitic stainless steel High strength, but poor plasticity and weldability. The common brands of martensitic stainless steel are 1Cr13, 3Cr13, etc. Because of its high carbon content, it has high strength, hardness and wear resistance, but its corrosion resistance is slightly poor. Purpose: It is used for some parts with high mechanical property requirements and general corrosion resistance requirements, such as springs, turbine blades, hydraulic valves, etc. This kind of steel is used after quenching and tempering. Annealing is required after forging and stamping. 6. Stainless steel plates and strips for pressure equipment The classification and code, size, shape and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and product quality certificates of stainless steel for pressure vessels have clear requirements. Common brands include 06Cr19Ni10, 022Cr17Ni12Mo2, and the number code is S30408, S31603, etc. Application: Mainly used for food machinery, pharmaceutical machinery and other sanitary equipment.

Four methods to ensure consistent cutting depth for CNC parts processing, and four methods to ensure consistent cutting depth (even on flat surfaces): As far as your CNC is concerned, the world is all sunshine and roses: your cutting tools will never deflect or wear, your clamps are rigid, free of vibration, and the surface of the workpiece is completely flat. However, those of us who have gray matter in the real world know that the truth of the situation is just perfect - tools are worn, clamps are bent, and the surface you want to cut is as flat as the good earth itself. Define flatness: Simply put, the term "flatness" is used to describe the area where the surface must lie between two parallel lines. This specification usually works with other dimensions on the print to describe the range of possible positions for a given surface: As you may or may not realize now, no surface is completely flat - in fact, few surfaces are even close to perfect flatness, and flatness costs money when it comes to manufacturing parts. Therefore, if it is not necessarily flat, or the printed matter does not define it as flat, then you have to assume that it is not flat. Depending on what specific surface you need to make, its flatness (or lack thereof) will need to play a key role in the milling strategy. Consistent cut depth method 1: Limiting the surface Keep the surface flat before other milling or engraving processes. If you can do this, ranking the surface is far from the simplest and most sure way to ensure that the surface you are going to use is fairly flat and true. The surface treatment of a surface is just a strange mechanical expression. When milling the whole surface, only a few thousand orders of magnitude can be extracted at a time, until the whole surface is reasonably uniform in flatness. The qualification pass is usually the first step you see when you watch the milling process in the workshop or online for a variety of reasons, the most important of which is to ensure the flatness of the surface. Starting from a square billet or green billet, the qualification of a surface is almost always an option, generally speaking, it is just good mechanic practice. However, sometimes it is not an option to qualify the surface. For example, when using die-casting materials, forging processes, or other finished parts, only marking or serialization is required. In these cases, different strategies are needed to achieve good results. Consistent cutting depth method 2: engraving tool with spring machining You can use the spring engraving tool to maintain the depth of the engraving. If you only need to do basic engraving or part marking work, and your surface is a bit "all over the map", then the spring engraving tool may be exactly what the doctor ordered. There are several different types of spring loaded tools, the most popular of which are the spring loaded version of the traditional split handle carving tool and the spring loaded "drag carving bit", also known as the "scribing" tool. Spring loaded engraving tools are used for engraving on uneven surfaces. Spring loaded engraving tool: This tool can help you keep the ballpark in basic engraving operations. Spring loaded engraving tools contain a compressible mechanical system between the spindle interface and the cutting tool. These tool assemblies typically have spring travel from 0.20 "to 0.40", so they can absorb considerable changes in Z height while still maintaining a consistent downward pressure on the workpiece. The spring loaded engraving cutter head uses a cutting handle engraving tool with a tip, so it can produce various engraving widths and depths. Drag engraving or scribing tools are literally dragged across a surface, and are not designed to incorporate rotating elements into the process. Therefore, the scribing tool is really suitable for marking very shallow parts. Although these tools are not very helpful for milling or drilling applications, they are very good for marking shallow to medium depth parts. However, this kind of tool has some disadvantages: the general handle size of these tools is 3/4 ", which may be too large for some spindles. Moreover, because these tools are mechanical components, they are usually limited to a maximum of 10000 RPM. This limitation may force you to slow down the feed speed and increase your cycle time. Therefore, if you need as many as thousands of cast aluminum alloy parts, spring loaded tools will be possible to complete this work. However, if you plan to complete the milling or drilling process, or if the work requires depth, width, or complex/high-quality carving, you may need to turn to other methods to complete the work. Consistent cut depth method 3: Mapping irregular surfaces using a touch detection system You can use touch detection to help maintain a consistent cutting depth in these applications. Depending on the type of milling machine you are using, the detection system can be used to touch the workpiece multiple times to "map" the surface. The surface mapping of the probe can be one of the faster and more elegant solutions to this problem, because it uses the technology in CNC machine tools to compensate for the irregularity of the Z height of the workpiece. This means that you can really limit the introduction of new variables in your process and stick to using proven real cutting tools, jigs and feedrates.

There are six techniques to maintain strict tolerance requirements in the processing of CNC precision parts. CNC machining machinists love to see something like this:+/- 0.005 ". Five thousandths of an inch is a training for any good machinist - they might as well close their eyes and polish it. However, those jobs are more demanding. Add another zero, and now you have: 0.0005". Holding five tenths of you is a completely different story. This is the difference between the thickness of human hair and white blood cells. When it comes to strict tolerances, here are some suggestions to keep your part specifications. Spindle preheating and preheating procedures can help maintain strict tolerances during machining. 1. The spindle warms up to maintain severe tolerances Run a warm-up program - Although this is the standard program for most CNC machining, consider running something more laborious. A typical procedure only warms up the spindle, which is critical to applying grease to prevent premature bearing wear. However, you also need to allow the internal components to reach a stable operating temperature to cope with thermal expansion. Now, if you only want to maintain strict tolerance on the Z axis, all this is correct, but if you combine the spindle preheating with the machine tool movement on all axes, it will help to go further. Allow the machine to run for 10-20 minutes, all part movements allow the parts to reach the desired temperature, and will help mitigate the effects of thermal expansion during milling. In any case, at the end of the warm-up, ensure that all tools are accurately measured and that strict tolerances are maintained. Tool selection may be a factor in maintaining tight tolerances. Use rough machining tools for "rough machining" to reduce the wear of finishing tools and maintain accuracy. 2. Selection of tools to maintain tight tolerance Choose your tools carefully - when dealing with these intolerable tolerances, be sure to adapt to your tools. You need to ensure that you have specific tools for roughing and finishing so that the roughing tool can withstand wear, while the finishing tool only saves the last process, thus ensuring a repeatable process for creating accurate parts. Before machining to the exact size, the gauge pin can be used to measure the undersized parts. 3. Compensation for strict tolerance Compensate your tools - tool manufacturers are not perfect, so their tools are a little tolerant. They know that if you want to use their tools to do something, you will be more happy if the size of the reduced function is too large rather than too large. It's like a haircut: you can take more rest, but you can't put it back. Knowing this, you need to make sure that the first thing you do when setting up a precise job is to dial your actual tool diameter. You can do this in many ways, but my preferred method is to mill a feature and then use accurate tools to verify dimensions. Easy - If you insert a 0.236 inch tool into a 0.250 inch hole and only a 0.248 inch measuring pin can be inserted, your tool size will be reduced by 0.001 inch (because the size on each side is not small enough, use a half value). Temperature will affect accuracy due to heat growth. Therefore, please pay attention to your environment and machine location. 4. Temperature to maintain tight tolerance Thermal stability - This is one of the most important things on the list, because it can make a huge difference that you may not even notice. Please note the location of your machine. Is it near the window, and if so, does the sun shine on it at certain times of the day? Is the air conditioning system started in the afternoon and cooled in the cabin? Are your materials stored in a stuffy warehouse and then in a cold 68 ° environment? These seem innocent, but they will cause huge trouble in your process. Thermal expansion or contraction of milling machines or cutting materials may make a big difference in your processing. Put them all in lock - keep your machines and materials in a temperature controlled climate, free from the influence of sunlight, and you will reap rewards - consistent in your process. Club testing and regular calibration of your machine will help maintain tight tolerances. 5. Calibration to maintain tight tolerance Calibrate your device - When you've done all the above, but all you need is * that * more stringent, consider calling the manufacturer. After a machine is built, it will be transported, dropped from the truck, moved stably, and used for thousands of hours. Things will be transferred and solved. This is unavoidable. Fortunately, there are several pieces of equipment, whether granite blocks or Renishaw Ballbar, that can help to run the reins on the tight machine to help maintain tolerance. We like to have a club test and adjust it as part of the annual maintenance, so that you can keep a close relationship with the accuracy of the machine. In addition, performing these annual services ensures that the bearings are tight and lubricated, that the belts are properly tensioned, and that the drive motors operate well - all of which are important factors for precision machining machines. The linear scale increases machine accuracy and consistency and maintains strict tolerances. 6. Linear scale used to maintain tight tolerance If everything fails, steelyard- If you have completed all the work on this list and are still working hard, it may be time to consider using a linear ruler to obtain the machine. Your typical CNC machine tool will use the drive motor encoder as the main method to track its absolute position, but this may be caused by the defect or temperature difference of the ball screw. Linear rulers change all this - usually factory installed, they consist of two main parts - the ruler and the reading head. In short - the scale is like a high-precision scale that can be read by a machine, constantly comparing and adjusting the deviation. On our M10Pro, this can achieve 25% more stringent positioning tolerance, improve repeatability by 20%, and reduce backlash by 85%.

Why should aluminum alloy parts be heat treated? As we know, many aluminum castings meet the performance requirements under casting conditions and do not need further processing. However, in order to improve the properties and strength and ductility, aluminum castings and aluminum alloy parts are usually processed through a series of heating and cooling cycles called heat treatment. This heat treatment involves three basic operations: solution, quenching and aging. Solution treatment includes heating the casting to near eutectic temperature to dissolve eutectic components and form a solid homogeneous solution. After this solution treatment, castings can be quenched or rapidly cooled, usually in boiling water, which helps to maintain a uniform solution at room temperature. The third step for heat treatment of aluminum castings is natural or artificial aging, which increases strength and hardness. The age hardening principle can also be used to customize the heat treatment for each application. The combination of these three heat treatments is called mild. The main purpose of heat treatment of aluminum castings is to develop the best combination of mechanical properties that can meet the key requirements of component applications. Three basic thermal operations are usually combined into a heat treatment cycle that provides various properties. Although aluminum casting related books provide "typical" or "recommended" solutions, the quenching and aging time and temperature of each alloy and tempering, these heat treatment cycles are often variable and manipulated to change the mechanical properties of castings to meet the strength and ductility requirements of specific components. Recent research has included the use of fluidized beds to reach solution temperatures quickly and to provide faster heat treatment cycles. The benefits of processing and heat treatment of aluminum castings and aluminum alloy parts include: • Homogenization of alloy elements - this is an element uniformly distributed in the whole matrix, so the performance of the casting will be uniform; • Stress relief - residual stress generated during high temperature casting and solution temperature cooling; Heating the casting to the middle temperature can reduce these residual stresses; • Improved dimensional stability and machinability - changes in microstructure may cause castings to grow over time; Maintain tight dimensional tolerance during and after processing, and castings shall be subject to heat treatment to form stable precipitates; • Mechanical property improvement - The greatest use of heat treatment is to enhance mechanical and corrosion properties by spheroidizing constituent phase particles and precipitation hardening. Few of the required properties are optimized in a single casting. More often, heat treatment is a compromise that maximizes the use of other properties. For example, tensile strength and yield strength can be improved, but this results in lower elongation. Conversely, higher elongation results in lower tensile and yield strengths.

At this stage, it is not difficult to see that the market for new surgical instruments is growing, which are used for cardiac catheterization, abdominal surgery, liposuction, colonoscopy and other operations or operations. Obviously, reliability and quality are the key to this industry, and it is very important that medical parts must be of high quality and appearance. Cnc processing of medical parts 1、 Classification of four processes for CNC processing medical parts: The design and development of medical devices is the key stage of its success, and in the production of medical devices, cnc processing is particularly important. Cnc machining has the advantages of high customization, strict tolerance, good surface finish and certified material selection. When CNC machining is used, parts are usually milled with 3 to 5 axes or turned with a movable tool CNC lathe. Manufactured items include various surgical instruments used in medical operations, such as trocar (skin piercing device), bone drill and saw. How does CNC process medical parts? The most common types of machines used in the manufacture of medical parts include CNC milling machines, lathes, drilling machines and computerized milling machines. Medical parts processed in CNC are generally divided into processes according to the principle of process concentration. The methods of division are as follows: 1. Divided by the tool used: Taking the technological process completed by the same tool as a working procedure, this division method is applicable to the case where there are many surfaces to be machined. This method is often used in cnc machining centers. 2. Divided by the number of workpiece installation: Take the technological process that can be completed by one clamping of parts as a process. This method is suitable for parts with few processing contents. On the premise of ensuring the processing quality of medical parts, all processing contents can be completed at one time. 3. Classified by rough and finish machining: The part of the process completed in rough machining is regarded as one process, and the part of the process completed in finish machining is regarded as another process. This cnc machining division method is applicable to parts with strength and hardness requirements, requiring heat treatment or parts with high accuracy requirements, requiring effective removal of internal stress, and parts with large deformation after machining, which need to be divided according to rough and finish machining stages. 4. According to the division of processing parts, the part of the process that completes the same profile is regarded as a process. Medical parts processing 2、 Four requirements for medical parts processing: For the parts with many and complex cnc machining surfaces, the sequence of nc machining, heat treatment and auxiliary processes should be reasonably arranged, and the problem of connection between processes should be solved. Before clamping raw materials, first measure whether the blank size meets the drawing requirements, and carefully check whether its placement is consistent with the programming instructions. Self inspection shall be carried out in time after the rough machining process is completed in CNC machining, so as to adjust the error data in time. The self inspection mainly includes the position and size of the processing parts: (1) Whether the mechanical parts are loose during processing; (2) Whether the processing technology of medical parts is correct; (3) Whether the dimension from the CNC machining part to the datum edge (datum point) meets the drawing requirements; (4) Location and dimensions of medical components. After checking the position and size, it is necessary to measure the rough machined shape ruler (except for the arc). Medical parts shall be finished after rough machining is confirmed. The shape and size of the drawing parts shall be self checked before the finishing of medical parts: the length and width of the vertical surface processing parts shall be checked; Measure the base point dimension marked on the drawing of the inclined plane processing part. After completing the self inspection of parts and confirming that they meet the drawing and process requirements, the workpiece can be taken out and sent to the inspector for special inspection. For small batch processing of medical parts, batch processing shall be carried out after the first article is confirmed to be qualified. What are the specific requirements for medical parts processing? As we mentioned above, reliability and high quality are the top priorities of medical parts processing. Therefore, the medical device industry has put forward new requirements for professional precision tools. Difficult to machine materials, complex workpiece shapes and frequent CNC small batch production have put forward high requirements for tools used to process professional medical devices. It is mainly shown in: 1. The requirements for CNC machine tools are relatively high Advanced medical equipment processing equipment such as Swiss automatic lathes, multi spindle machine tools and rotary workbenches are completely different from commonly seen machining centers and lathes. They are very small in size and compact in structure; To meet this requirement, the structure of the tool also needs special design. The size of the tool should be very small, and the rigidity of the tool should also be guaranteed. 2. High requirements for cnc machining efficiency For medical devices, the most important thing is the processing efficiency, that is, the processing rhythm The blade shall be replaced in the shortest time. 3. From the workpiece itself, it is very different from other mechanical parts; Medical devices implanted into the human body are required to have a very good surface finish, high accuracy and no deviation. This requires that the design of the knife blade structure and the design of the blade coating meet high processing requirements. 4. CNC processing requirements: Tolerances within the micrometer range are common in the medical industry, and selecting the right tool requires keen insight and rich experience. On the one hand, even drilling small holes requires the use of lubricants to reduce friction, reliably dissipate heat and handle fine iron chips at the blade; On the other hand, when producing cutting-edge medical devices (without burrs), it is necessary to use sharp and smooth cutting tools to obtain high-quality surfaces.