文章摘要信息 关键词 ： 崩碎切屑;缺口裂纹;起裂方向角;裂纹扩展 [gap=1167]Keywords : crack-chip;notch-crack;direction angle;crack expansion
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崩碎切屑
Break the chips
以上为机器翻译结果，长、整句建议使用 人工翻译 。
特别是JT9和JT11刀具，不但刀具磨损量小，加工表面质量好，而且在切削45钢和45淬硬钢时切屑为崩碎切屑。
Especially the tool wear size of JT9 and JT11 is small and the machined surface quality is high. In cutting 45 anneal steels and 45 hardened steels by JT9 and JT11 tools, chips were segments.
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