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

A laser cutter is a prototyping and manufacturing tool used primarily by engineers, designers, and artists to cut and etch into flat material. Laser cutters use a thin, focused laser beam to pierce and cut through materials to cut out patterns and geometries specified by designers. Apart from cutting, laser cutters can also raster or etch designs onto workpieces by heating up the surface of the workpiece, thus burning off the top layer of the material to change its appearance where the raster operation was performed. Laser cutters are really handy tools when it comes to prototyping and manufacturing; they are used in machine shops on the industrial scale to cut large pieces of material, they are used by hardware companies to create cheap, quick prototypes, and they are tools used by makers and artists as a DIY fabrication tool to bring their digital designs into the physical world. In this guide, I'll explain what laser cutters are, what they can do, and how you can use them, and I'll also provide some resources if you want to learn and do more with laser cutters.

1. Dramatically speed up the prototyping or production process, printing objects in hours 2. Allows for the design and creation of more complex geometries 3.Manufacturing requires fewer machines and operators 4.High flexibility and versatility to create almost anything 5.Allow multiple materials in one object 6.Layer-by-layer assembly improves design and ensures better quality 7.Each successive individual part can be monitored to reduce failures and errors 8.Does not require a lot of inventory space, prints on demand based on design 9.Plastic 3D printed parts offer advantages in lightweight applications 10.Minimizes used material with little to no waste compared to cutting from bulk 11.3D printing systems are more accessible and don't require extra people to run 12.The technology is environmentally friendly and sustainable

The definition of 3-, 4- or 5-axis machining has to do with the number of directions the tool can move, which also determines the ability of the CNC machine tool to move the workpiece and the tool. Hardware machining centers can move a component in the X and Y directions and the tool moves up and down the Z axis. On a five-axis machining center, the tool can move in the X, Y, and Z linear axes as well as rotate in the A and B axes, allowing the tool to move from Any orientation and approach to workpiece corners. Five-axis machining is different from five-sided machining. Therefore, 5-axis CNC machining services allow infinite possibilities for the parts being machined. Hook surface processing, special-shaped processing, hollow processing, punching, bevel cutting and other special processing can be completed through five-axis CNC services.

Up-milling and down-milling are two common milling phenomena in CNC machining. Many people don't understand the difference between them. Today's article will discuss the difference between up-milling and down-milling. The cutting edge of the milling cutter is subjected to a shock load every time it makes a cut. For successful milling, consideration must be given to the correct contact pattern between the cutting edge and the material as it plunges in and cuts off in one cut. During milling, the workpiece is fed in the same or opposite direction along the direction of milling cutter rotation, which will affect the feed of the cut, cut and whether it is run out or down milled The Golden Rule of Grinding – From Thick to Thin When milling, the formation of the cut must be considered. The decisive factor for cutting forming is the position of the milling cutter. It is required to form thick chips when the cutting edge cuts in, and form thin chips when the cutting edge cuts in, so as to ensure the stability of the milling process. Always remember the golden rule of milling "thick to thin" to ensure that the blade cuts with as little chip thickness as possible. up milling In upward milling, the tool feeds in the direction of rotation. Up-milling is always the preferred method whenever the machine tool, fixture and workpiece allow. When milling on the upper edge, the chip thickness gradually decreases from the beginning of the cut and finally reaches zero at the end of the cut. In this way, the cutting edge can avoid scratching and rubbing the surface of the part before participating in the cutting. A large chip thickness is advantageous, and cutting forces tend to pull the workpiece into the milling cutter to keep the cutting edge in cut. However, since the milling cutter is easily pulled into the workpiece, the CNC machine needs to eliminate the backlash to deal with the feed clearance of the table. If the milling cutter is pulled into the workpiece, the feed rate increases unexpectedly, which can lead to excessive chip thickness and edge breakage. Back milling should be considered at this time. Climb milling When milling down, the feed direction of the tool is opposite to the direction of rotation of the tool. Chip thickness increases gradually until the end of the cut. The cutting edge must cut hard, scratch or polish due to friction caused by the front cutting edge, high temperature and frequent contact with the work-hardened surface. It will shorten the service life of CNC tools. Thick chips and high temperatures generated by the cutting edge cause high tensile stress, shorten tool life and often quickly damage the cutting edge. It can also cause splinters to stick or weld to the cut edge, which then carries them to the start of the next cut, or cause the cut edge to collapse momentarily. Cutting forces tend to push the cutter and workpiece away from each other, while radial forces tend to lift the workpiece off the table. When the machining allowance changes greatly, down milling is better. Down milling is also used when machining superalloys with ceramic inserts, as ceramics are sensitive to impact when cutting the workpiece.

Sheet metal fabrication has many advantages. When we talk about volume, we can get really cheap, high-quality parts, it scales up to mass production, even the most common sheet metal best practice approach, not super high-end fancy mass production, but you'll see, by using the normal procedure that you see in stores across the country, the prices have dropped dramatically. Aluminum is an inexpensive material and the first supermaterial. It has an amazingly high strength-to-weight ratio, which is why we have such a great plane. You can use this power in your designs to create sheet metal parts. It is also affected by a large part. You can make the skin of a Boeing airplane, or you can make a small bracket.

1. Processing technology In traditional processing technology, positioning datum, installation method, tool, cutting method and other aspects can be simplified, but NC processing technology is more complex, and needs to fully consider these factors, even if the processing tasks are the same, how much NC processing technology can It can process different parts of a workpiece at the same time. This process has diversified characteristics, which is the difference between CNC processing technology and conventional processing technology. 2. to clamp, fix In CNC machining technology, fixtures and machine tools need to be fixed, and we also need to coordinate the size relationship of the coordinate system between the machine tool and the part. In addition, the two steps of positioning and clamping need to be effectively controlled during the clamping process. With the traditional processing technology, the processing capacity of the machine tool is limited, and multiple clamping is required during the working process. Moreover, special fixtures are required in the processing process, which leads to higher design and manufacturing costs for the fixtures. For the CNC machining process, the instrument can be used for debugging. In most cases, there is no special fixture, so the cost is relatively low. 3. Knives In the processing process, different processing techniques and processing methods determine the cutting tool. Especially in computer numerical control machining, the use of high-speed cutting is not only beneficial to improve machining efficiency but also beneficial to machining quality, effectively reducing the probability of cutting deformation, and thereby shortening the machining cycle. At present, there is a dry-cutting method, the tool can work without cutting fluid or only a small amount of cutting fluid, so the tool needs to have good heat resistance. Compared with traditional processing technology, computer numerical control processing technology has higher requirements for the performance of cutting tools. 4. Cutting parameters In the traditional machining process, more complex surface and curve operations are prone to errors, so it is necessary to carefully select the cutting parameters. While CNC machine tools are based on the control of the system, and then operate, all surface processing processes can be controlled on the basis of using programs. The tool path is more flexible, and more scientific cutting parameters can be set according to actual needs, so as to improve the overall processing efficiency. Compared with traditional machine tool processing, it has great advantages. At present, rough machining based on high-speed machining has the advantages of high feed rate and fast cutting speed, which greatly improves the machining efficiency, reduces the damage of the tool to a large extent, and further prolongs the service life of the tool. For traditional processing, these are impossible to achieve.   5. Flexibility Among traditional machine tools, general machine tools have good flexibility, but low processing efficiency; special-purpose machine tools have high processing efficiency, but their applicability to parts is not high. With poor flexibility and high rigidity, it is difficult to adapt to the continuous modification of products on the market, and competitiveness is weak. For CNC machine tools, as long as the program is changed, new parts can be processed, with good flexibility, automatic operation, and high processing efficiency, and can well adapt to the fierce market competition.   6. Quality When using CNC machining, the degree of automation is very high, so special attention should be paid to quality and safety. The machining process should be tested before the process is put into production. Only when the requirements of all aspects of production are met can it be put into actual production and application. In traditional processing, process documents can be put into production as a guide for the production line, without the need for the above-mentioned complicated processes.

1. Unparalleled precision Many machines can only work effectively if they provide the required precision. As such, it is an essential quality for many manufacturing processes. A machine can achieve precision only if all the individual parts are precisely manufactured. CNC machining can meet this requirement and guarantee high precision in the manufacturing process. 2. Good durability In addition to high precision, CNC machining provides long-lasting durability. Any well-maintained CNC assembly will last a full day of work. 3. Reduce the reliability of human resources Generally speaking, the manufacturing process is seen as a large labor force working around machines. CNC technology shatters the stereotype of the manufacturing plant. You don't need a lot of workers to handle a CNC-driven manufacturing environment. A skilled operator and programmer can be responsible for many aspects of a CNC production operation. 4. Safer and less maintenance Worker claims come primarily from manufacturing plants. So, if you want to design a safe working environment in the manufacturing field, incorporate CNC machining into it. It effortlessly keeps the workplace safe due to less involvement and errors.

The division of CNC machining processes can generally be carried out in the following ways: 1. The method of tool concentration and sequencing is to divide the process according to the tool used and use the same tool to process all the parts that can be completed on the part. In other parts, they can finish with the second knife and the third. In this way, the number of tool changes can be reduced, the idle time can be compressed, and unnecessary positioning errors can be reduced. 2. Sorting method of processing parts For parts with a lot of processing content, the processing part can be divided into several parts according to its structural characteristics, such as inner shape, outer shape, curved surface or plane. Generally, the plane and positioning surface is processed first, and then the holes are processed; the simple geometric shapes are processed first, and then the complex geometric shapes are processed; the parts with lower precision are processed first, and then the parts with higher precision requirements are processed. 3. Rough and finish machining sequence method For parts that are prone to machining deformation, shape correction is required due to possible deformation after rough machining. Therefore, generally speaking, the processes for rough and finished machining must be separated.   To sum up, when dividing the process, it must be flexibly controlled according to the structure and manufacturability of the parts, the function of the machine tool, the amount of CNC machining content of the parts, the number of installations and the production organization status of the unit. In addition, it is recommended to adopt the principle of process concentration or the principle of process dispersion, which should be determined according to the actual situation, but must strive to be reasonable.

1. 45——high-quality carbon structural steel, which is the most commonly used medium carbon quenched and tempered steel 2. Q235A (A3 steel) - the most commonly used carbon structural steel 3. 40Cr—one of the most widely used steel types, belonging to alloy structural steel 4. HT150——Gray cast iron 5, 35 - common materials for various standard parts and fasteners 6, 65Mn - commonly used spring steel 7. 0Cr18Ni9 - the most commonly used stainless steel (US steel number 304, Japanese steel number SUS304) 8. Cr12—commonly used cold working die steel (American steel type D3, Japanese steel type SKD1) 9. DC53 - commonly used cold work die steel imported from Japan 10. DCCr12MoV - wear-resistant chromium steel 11. SKD11——Toughness chrome steel 12. D2 - high carbon high chromium cold work steel 13. SKD11 (SLD) - high chromium steel with no deformation and toughness 14. DC53 - high toughness high chromium steel 15. SKH-9——general-purpose high-speed steel with high wear resistance and toughness 16. ASP-23——Powder metallurgy high-speed steel 17. P20 - the size of plastic molds generally required 18. 718——Highly demanding size plastic molds 19. Nak80——high mirror surface, high precision plastic mold 20. S136——anti-corrosion and mirror polishing plastic mold 21. H13——commonly used die-casting mold 22. SKD61——advanced die-casting mold 23. 8407——advanced die-casting mold 24. FDAC - added sulfur to enhance its fragility

Analyze the service conditions of the parts to find out the specific load conditions, stress states, temperatures, corrosion and wear of the parts during use. Most of the parts are used in the normal temperature atmosphere, and the mechanical properties of the material are mainly required. Parts used under other conditions require materials to have certain special physical and chemical properties. For example, when used under high-temperature conditions, the parts materials are required to have certain high-temperature strength and oxidation resistance; chemical equipment requires materials to have high corrosion resistance; some instrument parts require materials to have electromagnetic properties, etc. Welded structures used in severe cold areas should have additional requirements for low-temperature toughness; when used in humid areas, additional requirements for atmospheric corrosion resistance should be added. (1) Through analysis or test, combined with the results of failure analysis of similar materials, determine the generalized allowable stress indicators that allow materials to be used, such as allowable strength, allowable strain, allowable deformation and service time, etc. (2) Find out the main and secondary generalized allowable stress indicators, and use important indicators as the main basis for material selection. (3) According to the main performance indicators, select several materials that meet the requirements. (4) Select the material and its molding process according to the molding process of the material, the complexity of the parts, the production batch of the parts, the existing production conditions, and the technical conditions. (5) Comprehensively consider material cost, molding processability, material performance, reliability of use, etc., and use optimization methods to select the most suitable material. (6) When necessary, the selection of materials should be tested and put into production, and then verified or adjusted.