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CMK 样本量

CMK 样本量一定是50吗?
如果一台设备有多个工位,假设1次出4个零件,是每个工位都要50 pcs,还是总共50pcs就ok?
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Sol_Sun (威望:68) (山东 青岛) 机械制造 MBB/质量总监/专家 - 精益六西格玛、质量管理、AUKOM、GD&...

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According to company regulations (e.g. VW AG):

50 parts from a single batch
Number the parts 1,2,...
Part preparation must be o.k.
Create a production environment
Set the machine up to produce parts to specification midpoint 
Warm up the machine
Produce the parts sequencially
No adjustments, no tool changes etc.
One person to inspect all parts
Always measure features in the same position
Record all values, including flyers

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