free-cutting是什么意思

用法例句

For the free-machining steel, some earlier investigations showed that the globular inclusions are more helpful than the thready inclusions to improve the machinability.

通过自行设计的高温显微切削装置,在不同温度上对含有球状稀土硫化物夹杂的易切削钢进行了高温显微切削实验,观察到球状稀土硫化物夹杂在显微孔洞扩展过程中发生滚动。

A random fractal model for the crack propagation of free-machining steelsduring impacting transversely was proposed.

建立横向冲击时易切削钢裂纹扩展的随机分形模型，计算了冲击断口的随机分形维数Ｄ，比较和分析了Ｄ、非随机分形维数与实测分形维数。

Microstructure and property of two kinds of free-cutting Al-Cu alloy;

两种易切削Al-Cu合金的组织与性能

Free-cutting Brass Containing Bi;

易切削Bi黄铜机理的研究

Research situation and outlook of free-cutting nonleaded brass;

无铅易切削黄铜的研究现状及其展望

Effect of Breakdown Process on Surface Cracking of Billet of Free Cutting Austenite Stainless Steel;

开坯工艺对易切削奥氏体不锈钢坯表面开裂的影响

Mechanical Working Properties of Free Cutting Austenitic Stainless Steel 303F and 316F;

易切削奥氏体不锈钢303F和316F的机加工性能

Application of Microalloy Free Cutting Steel 35MnVS for Connecting Rod of Auto-Engine;

35MnVS易切削非调质钢在汽车零件上的应用

Inclusion morphology control in medium-carbon calcium sulphur free-cutting steel;

中碳钙硫易切削钢夹杂物形态控制

A Study on Smelting and Properties of Tin-Bearing Free-Cutting Steel;

含锡易切削钢的冶炼和性能研究

Process practice and analysis on free-cutting steel XY45;

易切削钢XY45的工艺实践与分析

Present Status and Development of Research on Free Cutting Steel at Home and Abroad;

国内外易切削钢的现状和研究进展

Present research status and prospects on free cutting steel at home and abroad;

国内外易切削钢的研究现状和前景

Through researching the chemical composition,properties and smelting process of the XY45 free cutting steel,the productive essentialities of this steel were mastered.

通过对XY45易切削钢的成分、性能、冶炼工艺的探索,掌握了该钢种的生产要点。