熟女人妻一区二区三区免费看_日日鲁鲁夜夜狼狼视频_av蜜臀一区二区三区久久_91视频免费在线_日本靠逼视频_成全视频在线观看免费观看在线_国产高清久久久_人妻无码AV中文系列久久兔费_高清无H码动漫在线观看网站_国产又色又爽又黄的A片_免费尻逼视频_亚洲精品乱码中文久久_无翼乌口工全彩无遮挡老师_特大巨黑吊性XXXX_av网站地址_国产一区二区视频免费在线观看_羞羞影院男女爽爽影院尤物_欧美午夜精品_最后一夜高清观看HD_天堂中文在线8最新版地址_最新无码A∨在线观看_午夜免费一区二区播放_隔着超薄肉丝袜做AV在线_chinesefreexxxx麻豆_一级片毛片_动漫av在线看男男_中文字幕丰满乱码_婷婷开心激情综合五月天_亚洲麻豆国产自偷在线_久久人人爽人人爽人人片DVD

Metal stamping parts hardness testing using Rockwell hardness tester. Small, complex-shaped stampings that can be used to test small flat surfaces can not be detected on a common benchtop Rockwell hardness tester.

Stamping parts processing, including blanking, bending, drawing, forming, finishing and other processes. The materials for stamping are mainly hot rolled or cold rolled (mainly cold rolled), such as carbon steel, alloy steel, spring steel, galvanized steel, tinplate, stainless steel, copper and copper alloy Board, aluminum and aluminum alloy plate.

Portable surface Rockwell hardness tester is very suitable for testing the hardness of these stampings. Alloy stamping is metal processing, machinery manufacturing the most commonly used parts. Stamping parts processing is the use of mold separation or forming of the metal plate processing methods.

The main purpose of stamping material hardness testing is to determine whether the purchase of the sheet metal annealing degree is suitable for subsequent stamping parts to be processed, different types of stamping parts processing technology, the need for different hardness levels of the plate. Aluminum alloy sheet for stamping parts processing available Webster hardness tester, material thickness greater than 13mm can be changed to Barcol hardness tester, pure aluminum or low hardness aluminum alloy plate should be used Barcol hardness tester.