Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface.

2022年12月11日 · 1.1 Application— This SAE Recommended Practice describes the technique of using a file for testing the surface hardness of miscellaneous iron and steel parts as designated by engineering specifications.

Application—This SAE Recommended Practice describes the technique of using a file for testing the surface hardness of miscellaneous iron and steel parts as designated by engineering specifications. In presenting this procedure, it is recognized that it is subjective and that it must be used with considerable judgment on the part of the operator.

6 天之前 · SAE J864-2018的标准全文信息,“用锉刀进行硬度测试主要包括切割或打磨金属零件的表面@，并通过锉刀咬入表面的感觉@或程度@来估算硬度。 术语“锉硬”是指表面硬度测试的零件的硬度经过验证的新锉刀不会切割正在测试的材料的表面。

J864_201801: Revision Number: A: Title; Surface Hardness Testing with Files: Scope; Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface.

Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface.

2018年1月10日 · Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface.

This SAE Standard covers material, dimensional, performance and test requirements for metric thread rolling screws suitable for use in general engineering applications. Requirements for three...

Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface. The term 'file hard' means that the surface hardness of the parts tested is such that a new file of pro.

SAE J864 – Surface Hardness Testing with Files (Stabilized: Jan 2018) Hardness testing with files consists essentially of cutting or abrading the surface of metal parts, and approximating the hardness by the feel, or extent to which, the file bites into the surface.