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Precision metal stamping parts technical difficulties

by:Fortuna     2021-01-30
Cold stamping parts' precision metal stamping parts can be seen everywhere in our daily life, big to aircraft, aviation spacecraft, small to mobile phone, watch parts, as long as it is basic is inseparable from the mass production mold. Today, to share a precision metal stamping parts stamping technical difficulties 'fine blanking' or 'full bright belt'. What do you mean this? Is cutting out section quality must ensure that the light without burr. The difficulty is that the ordinary cutting process is completed, due to the effect of blanking clearance, assembling clearance, inevitably will appear on the product surface surface under natural collapse Angle, burr. Specific distribution under the reasonable cutting clearance section after cutting quality is divided into four parts: flat Angle area, brightness, crack, burr. The so-called fine blanking, is on the basis of the ordinary reasonable cutting has evolved, the form is to make the cutting surface area only keep light area. Only light area, because of no burrs after cutting, Angle of impact, measuring the dimension precision is very high, also very beautiful appearance. 1, precision metal stamping parts to reduce the cutting clearance with minimal Angle of blanking clearance to minimize collapse, burr, fault zone, in order to get maximum area light band. Advantages: simple structure, little changes, the applicable scope wide disadvantages: large cutting force, punch edge easy to wear, production is not too high 2 and utilizes the secondary blanking step by step, the advantage of the blanking step by step, first will be according to normal blanking, piercing blanking part but retain a little allowance ( Allowance, the less the better the results) Fine cut, and then the second part. Advantages: can guarantee with the cutting surface for full bright weakness: the craft, the structure is relatively complex, the processing difficulty is big, the variable cycle is longer than its fine blade mouth parts need to do special processing, need to make the arc shape, the principle is similar to chopping vegetables. 3 and a half, positive and recoil a similar cutting cutting process, the product first positive blanking, but not completely thrust, retain about 1/4 t. Then flip reverse blanking material, in order to ensure the quality of section is smooth. Advantages: ensure the euphotic zone, for the first two cannot process faults: technology, structure is relatively complex, difficult to machining, with a long cycle adjustable die for precision metal stamping parts products, all three of these can be achieved properly, there is no good or bad. For a relatively sharp products, must try many times. All above is about the quality of precision metal stamping parts section light design and repairing mold skill. Hope to be able to help part being that got the friend. 【 Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps
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