[交流] 【求助】关于制硬度样的问题！！

Originally posted by zgw318 at 2010-12-30 09:16:59:
手磨背面啊，钳工活，粗砂纸上磨得很快的。

Originally posted by gzh2009 at 2010-12-30 17:16:16:

这不是快不快的问题 是平不平的问题

Originally posted by sinoeagle at 2010-12-31 16:16:38:
下面垫上橡皮泥之类的东西 ，然后压平再打硬度

Originally posted by zgw318 at 2010-12-31 13:36:03:


我很快就能磨平啊，经验问题，磨样两年了

Originally posted by eddie999 at 2010-12-29 21:28:45:
车或者铣，给定平行度就可以了

Originally posted by gzh2009 at 2011-01-01 10:47:13:

车或洗了也得磨啊 不磨怎么保证表面光洁度啊？只要一摩就又不平了

Originally posted by gzh2009 at 2010-12-29 20:16:38:
我是搞铝合金的，每次的硬度样都要从钜 到磨 很费劲，关键是在打硬度时要求样品的上下表面得是平行的。这样打出来的硬度凹坑才规则否则就会是椭圆（HB）或者不规则菱形（HV）。但要做到上下两个面平行很难。我怎么 ...

Originally posted by dolph at 2011-01-01 23:26:37:

可以镶样么？

Originally posted by gzh2009 at 2011-01-02 11:08:18:

我们样品很多镶嵌太麻烦，慢

Originally posted by popsimbt at 2011-01-02 21:57:32:
磨样品是材料学子们的看家本领
楼主想偷懒的话，就用磨床磨，hehe
或者线切割，再稍微磨一下

Originally posted by 天天客 at 2011-01-02 18:43:26:
垫在玻璃板上，可能会好些。