As the application of sheet metal is more and more extensive, the design of sheet metal parts of sheet metal processing manufacturers has become a very important part of the process of product development. The mechanical engineers must master the design skills of sheet metal parts skillfully, so that the design of sheet metal meets the requirements of the function and appearance of the product, and makes the stamping die manufacturing simple and formed. This is low.
1, design and draw the parts drawing of its sheet metal parts, the function is to express the structure of sheet metal parts by drawing.
2, draw up the expansion plan, that is, to expand a complex part into a flat panel.
3, punching machine processing
General punching machine has punching, cutting, punching, blanking, punching, punching, tearing, hole drawing and other processing methods, so as to achieve the purpose of processing. Its processing needs to have the corresponding mold to complete the operation. The convex hull has a convex mold and a tearing forming die.
4. Flanging tapping
Flanging is also called pumping hole, which is to draw a slightly larger hole on a smaller base hole and then tapping on the hole. This can increase its strength and avoid slipping. It is generally used for sheet metal processing with thin plate thickness. When the plate thickness is large, such as 2 and 2.5 above the thickness of the plate.
5. There are many ways to cut stock.
A. cut bed blanking using scissors to cut out the size and width of the expansion plan. If there is piercing and corner cutting, the punching machine will be combined with die punching and corner cutting.
B. punching blanking is done by punching machine in one step or more steps. Its advantages are short work time and high efficiency, which can reduce processing cost and is often used in mass production.
C.NC NC blanking NC blanking, first of all, we need to write CNC machining procedures. It is to use programming software to compile the expanded drawing to be a recognizable program of NC CNC machine tool. Let them step by step with these programs on a piece of iron plate, and punch out the structural shape of the flat panel.
D. laser cutting is done by means of laser cutting, and the structural shape of flat panel is cut on a piece of iron plate.
Three kinds of sheet metal cutting method for sheet metal processing
Situation 1: thin plate, simply cut off with the shearing machine, complex and bad scissors are batch production, blanking with punching die, cutting thick plate with CNC cutting.
Situation two: the cutting machine with high precision is not enough, and the cutting machine with high accuracy can be cut by plasma cutting machine or laser.
Situation three: industrial mass production is usually bought steel rolls, set down blanking line, open volume with automatic uncoiler + fast scissors under rectangular or trapezium. If the utilization rate of materials is improved, arc cutting machine can be added to cut arc material. In the middle batch, the steel mill is requested to set up the rectangular stacks directly. The laser / plasma is used only for trial production (too high cost and low productivity). The water knife is used for cutting some special materials of non cold and hot rolled material, and the productivity is low.
标签:   钣金加工 钣金加工厂家 钣金