Stamping process and die

Automobile products in the world for a variety of age, diversification of mould and mould has become especially prominent feature of replacement cycle short, at the same time puts forward new requirements to the stamping process technology, the automotive stamping parts production and processing technology of the change. Automobile products in the world for a variety of age, diversification of mould and mould has become especially prominent feature of replacement cycle short, at the same time puts forward new requirements to the stamping process technology, the automotive stamping parts production and processing technology of the change. 1. Stamping process for automobile stamping parts with good manufacturability and economy, to measure the level of an important symbol of a stamping process number, block number and size of body assembly, stamping parts of the structure and other factors. Reduce the process of stamping process means that number, save the tooling number, simplify the stamping process of the transmission device, reduce operating personnel and equipment area, such as excellent measures is to save investment and energy consumption, so the stamping manufacturers can put the number of stamping process design as an important way to reduce automobile manufacturing cost, even at the improvement of products designed to meet the requirements of manufacturing technology, as well as the use of large size as far as possible reasonable body assembly parts, such as whole body left and right side panel and top cover plate, can make a car appearance more beautiful and practical, reduce the air resistance, but also reduce the amount of stamping parts and the solder joint, can effectively reduce the cost. When making the stamping process of workpiece, such as dispersion and concentration of processing is more complex problems. It depends on the bulk of the workpiece shape, structure, quality, process characteristics, etc. For usually mass-produced automobile stampings, should take process as concentrated solution, adopting compound stamping progressive die, or to both increase productivity, and can achieve safety in production. For the practical experience shows that compound die, focus on the number of processes on a pair of mold shoulds not be too many, generally for 2 ~ 3 working procedure, up to 4, for progressive die, focus on the number of processes can be a little more, because the scope of the layout of the mould structure greater freedom. 2. Over stamping die process as the senior side of car body whole compound stamping technology promoted the increase of mesa and press, stamping process also got rapid development, the car door and fender stamping from past a mold piece for the development of dual slot die production, production efficiency be doubled, has developed to the inside and outside the door plate adopts latest four type slot die production, production efficiency has doubled. Over larger output, will use the press at the same time, can make the mould fee, material fee and toll fee are lower, for forming process, is also beneficial to uniform stress and strain is symmetrical, also improves the production efficiency, reduce the energy consumption. Double is a production of the latest development trend of inner and outer plate production at the same time, its advantage is: the production quantity match, also can send welding line pressing in time at the same time, logistics smoothly and convenient. 3. Progressive die level into the combination die has been widely used in automobile industry in developed countries, its advantages are high productivity, low cost, do not need to die cut. Compared with multistage pressure machine use ladder model, progressive die can save 30% of the cost, but its application by stretching depth, orientation and transfer the limitation of the strip edge material surface hardening, it is mainly used for simple parts of tensile depth is shallow. A: simple introduction of stamping