Die cutting process - the blanking process of knife die and knife die. The film panel or line is positioned on the bottom plate, the knife die is fixed on the machine template, and the material is cut off by controlling the knife edge with the force provided by the machine. What distinguishes him from the blanking die is that the notch is smoother; At the same time, through the adjustment of cutting pressure and depth, the indentation and half break can be cut. At the same time, the cost of the mold is low, and the operation is more convenient, safe and fast.
Centrifugal casting is a technology and method to inject liquid metal into a high-speed rotating mold to fill the mold and form castings under the action of centrifugal force. According to the shape, size and production batch of the castings, the mold used for centrifugal casting can be non-metallic (such as sand mold, shell mold or investment mold shell mold), metal mold or the mold with coating layer or resin sand layer in the metal mold.
Lost foam casting is a new casting method that combines paraffin wax or foam models similar in size and shape to form model clusters, applies fire-resistant coatings and dries them, buries them in dry quartz sand for vibration molding, pours them under negative pressure, vaporizes the model, liquid metal occupies the position of the model, and solidifies and cools them to form castings. EPC is a new process with nearly no allowance and accurate molding. This process does not require mold taking, parting surface and sand core, so the casting has no flash, burr and draft angle, and reduces the size error caused by core combination.
Squeeze casting, also known as liquid die forging, is a method to directly inject molten metal or semi-solid alloy into the open mold, then close the mold to generate filling flow, reach the external shape of the workpiece, and then apply high pressure to cause plastic deformation of the solidified metal (shell), while the uncured metal bears isostatic pressure, while high-pressure solidification occurs, and finally obtain the workpiece or blank. The above is direct squeeze casting; In addition, indirect squeeze casting refers to the method of injecting molten metal or semi-solid alloy into the closed mold cavity through a punch, and applying high pressure to make it crystallize and solidify under pressure, and finally obtain a workpiece or blank.
Continuous casting is a casting method that uses a through mold to continuously pour liquid metal into one end and continuously pull out molding materials from the other end.
Drawing is a plastic processing method that uses external force to act on the front end of the metal to pull the metal blank from the die hole smaller than the blank section to obtain products of corresponding shape and size. Because drawing is usually carried out in cold state, it is also called cold drawing or cold drawing.
Stamping is a forming processing method of workpieces (stamping parts) with required shape and size by applying external force on plates, strips, pipes and profiles by press and die to cause plastic deformation or separation.
Metal injection molding (MIM) is a new powder metallurgy near net forming technology that extends from the plastic injection molding industry. As we all know, plastic injection molding technology produces products of various complex shapes at low prices, but the strength of plastic products is not high. In order to improve its performance, metal or ceramic powders can be added to plastic to obtain products with high strength and good wear resistance. In recent years, this idea has evolved to maximize the content of solid particles and completely remove the binder in the subsequent sintering process and densify the preform. This new powder metallurgy forming method is called metal injection molding.
Turning refers to the lathe processing is a part of mechanical processing. The lathe mainly uses turning tools to turn the rotating workpiece. Lathes are mainly used to process shafts, discs, sleeves and other workpieces with rotary surfaces. They are the most widely used machine tools in machinery manufacturing and repair plants. Turning is a method of cutting the workpiece by rotating it relative to the tool on the lathe. The cutting energy for turning is mainly provided by the workpiece rather than the tool.
Turning is the most basic and common cutting method, which plays a very important role in production. Turning is suitable for machining rotary surfaces. Most workpieces with rotary surfaces can be machined by turning methods, such as internal and external cylindrical surfaces, internal and external conical surfaces, end faces, grooves, threads and rotary forming surfaces. The tools used are mainly turning tools.
