Process classification of metal stamping parts

The punching machine and die apply external force to plates, strips, pipes and profiles to produce plastic deformation or separation, thereby obtaining the required shape and size of the workpiece forming method, and the resulting workpiece is a metal stamping part. Our company said that stamping parts are formed by applying external force to plates, strips, pipes and profiles by presses and molds to cause plastic deformation or separation, so as to obtain the required shape and size of the workpiece (metal stamping parts). . Stamping and forging are both plastic processing (or pressure processing), collectively known as forging. The blanks for metal stamping are mainly hot-rolled and cold-rolled steel plates and strips.

Metal stamping parts

Compared with castings and forgings, metal stamping parts have the characteristics of thinness, uniformity, lightness and strength. Stamping can produce workpieces with stiffeners, ribs, undulations or flanges that are difficult to manufacture by other methods to improve their rigidity. Due to the use of precision molds, the accuracy of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and holes, bosses, etc. can be punched out.

Process classification of metal stamping parts

Clutch, commonly known as Jilizi in Hong Kong, comes from English Clutch, and Taiwanese is often called Lizai or Japanese クラッチ. It transmits the engine power of a car or other power machinery to the axle by switching installation.

The clutch is installed between the engine and the transmission, and is an assembly directly connected to the engine in the automobile drive train. Usually the clutch is installed together with the flywheel set of the engine crankshaft, and is the part that cuts off and transmits power between the engine and the automobile driveline.

During the entire process of the car from starting to normal driving, the driver can manipulate the clutch as needed to temporarily separate or gradually engage the engine and driveline to cut off or transmit the power output from the engine to the driveline. Its function is to gradually engage the engine and the transmission to ensure a smooth start of the car; temporarily cut off the connection between the engine and the transmission to facilitate shifting and reduce the impact of shifting; it can be used when the car is braked in an emergency. The separation function prevents the transmission system such as the transmission from being overloaded, thereby playing a certain protective role.

The clutch is similar to a switch, which engages or disengages the power transmission function. The active part and the driven part of the clutch mechanism can be temporarily separated, and can be gradually engaged, and it is possible to rotate relatively during the transmission process. A rigid connection cannot be used between the driving part and the driven part of the clutch. Any form of car has a clutch device, but the form is different.

Cold metal stamping parts are generally no longer processed by cutting, or only a small amount of cutting processing is required. The precision and surface condition of hot stamping parts are lower than cold stamping parts, but still better than castings and forgings, and the cutting amount is less.

Stamping is an efficient production method. Using compound dies, especially multi-station progressive dies, multiple stamping processes can be completed on one press, and the process from strip uncoiling, leveling, punching to forming and precision Fully automatic production. The production efficiency is high, the working conditions are good, and the production cost is low. Generally, hundreds of pieces can be produced per minute.

Our company claims that metal stamping is mainly classified by process, which can be divided into two categories: separation process and forming process. The separation process is also called punching, and its purpose is to separate the stamping parts from the sheet along a certain contour line while ensuring the quality requirements of the separated section. The surface and internal properties of the sheet metal used for stamping have a great influence on the quality of the stamped product. The thickness of the stamping material is required to be accurate and uniform; the surface is smooth, without spots, scars, scratches, and surface cracks, etc.; the yield strength is uniform and not obvious Directionality; high uniform elongation; low yield ratio; low work hardening.