铣刀的磨耗与修磨问题是机械加工中的主要问题之一。发表这篇文章是希望大家能够重视刀具的磨耗与修磨，引起大家的分析研究，做到合理使用刀具，减少刀具消耗，提高切削率，提高产品质量，降低产品成本。 Mill wear and grinding problems is one of the major problems in machining. This article is published in the hope that we can attach importance to wear and grinding tool, causing everyone’s analysis, so that the rational use of knives, reduce tool consumption, increase cutting rate, improve product quality and reduce product costs.