摘要
用数理统计精确度指标CPK对模具生产的制程能力进行分析。按照CPK值将模具的制程能力划分为5个等级,并以5个尺寸的32组抽样数据为例,得出CPK等级在A级时,模具生产的准确性和精密度较高,可以生产出优质产品,无需对模具和成型工艺参数做任何修改;当CPK等级不在A级时,结合准确度和精密度的情况,给出了相应的模具及成型工艺参数的整改方案。
The article use statistical index CPK to analyze molding process capability.Based on CPK value,molding process capability is divided into 5 levels,and with five size 32 group sample data for example,when CPK level is A,mold production accuracy and precision are higher,mold can produce high quality products,need not to changes mold size or molding process parameters.When CPK level is not A,combined with accuracy and precision,the article presented corresponding improvement scheme of the mold and the molding process parameters.
出处
《机电工程技术》
2012年第8期177-179,共3页
Mechanical & Electrical Engineering Technology
关键词
数理统计
模具
准确度
精密度
mathematical statistics
mold
accuracy
precision
