In reading the One Good ldea column, "Find the Answers You Seek," (August 2008, p. 80) I agree with Ray Harkins in one area: Product engineers often prefer to minimize the tolerance guidelines they provide for manufacturing. This can happen for a couple of reasons.rnFirst, the resulting sum of part tolerances may have an impact on the final assembly, making it cheaper to tighten the part tolerances rather than lose expensive assembled products. Second, it might be that the product engineer has no idea what to expect from the process.
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机译：在阅读One Good ldea专栏文章“寻找所需的答案”（2008年8月，第80页）时，我同意Ray Harkins在一个方面的观点：产品工程师通常更喜欢尽量减少他们为制造提供的公差准则。发生这种情况的原因有两个。首先，零件公差的总和可能会影响最终组装，从而使得收紧零件公差的成本降低，而不会损失昂贵的组装产品。其次，可能是产品工程师不知道该过程会带来什么。
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