Page 2 of Technical Articles for Metal Parts

Compared with casting parts and forging parts, stamping parts have thin thickness, light weight and high hardness. For precise die moulds, the precision can reach micron size. Stamping parts have higher accuracy and consistent dimensions. In general, cold stamping parts do not need machining or just only require few machining....

The followings are the test methods used for stamping parts.   Touching  Use clean gauze to clean up the surface of covering parts. Inspector should put on gloves and touch the surface of stamping parts closely, along with lengthways of stamping parts. The method depends on inspectors’ experience. On occasion,...

Rockwell hardness tester is mainly used for hardness measurement on stamping parts. For small stamping parts having a complex shape, the surface is too small to be tested. So, small stamping parts cannot be measured by using common desk Rockwell hardness tester.   Stamping parts processing mainly includes blanking,...

The production of stamping parts is a shaping process of plates, strips, pipes and profiles imposed by external forces from press machines and moulds to give rise to plastic deformation or separation so as to achieve stamping parts with required shape and dimension. As with forging, stamping is also plastic processing...

Door hinge is a device that allows the flexible turning or pivoting of a door for opening or closing. Because door hinges are often used, choosing good quality door hinges is very important. How to choose such quality door hinges is described below: 1. Checking surface. Check if surfaces of door hinges are smooth...

The industries utilizing micro system technology are among the world’s fastest-growing industries. Such industries manufacture tiny but high-precision parts which are widely applied in biomedical equipment, optical and micro-electronics (like mobile communication and computer components) industries and so on. The...

1. Introduction of stainless steel categories Main components of stainless steels are composed of various high quality metallic elements like Cr, Ni, Mo, Ti, etc. Commonly used stainless steels include chromium stainless steels (Cr≥12%) and Ni-Cr stainless steels (Cr≥18%; Ni≥12%). In terms of metallurgical structure,...

The principle of laser welding Laser welding is a kind of high precision welding method, which makes use of high energy density laser beam as a heat source. Laser welding is one of important aspects of laser material processing technology, which is mainly used for welding thin wall materials and welding at low speed in...