The surface hardening of 40cr steel was performed on a surface grinder by transverse feed grinding; the changing trends of microstructure and wear behavior of surface hardened layer were researched.

在平面磨床上对非淬硬钢进行了磨削硬化处理，研究了磨削方式和冷却条件对表面硬化层的影响。

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The transverse method, in which both the grinding wheel and the workpiece rotate and longitudinal linear feed is applied to enable grinding of the whole length.

横向方法：这种方法中砂轮与工件均旋转且采用线性纵向进给以保证能磨削整个长度。

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Having no automatic tool lifter, having no automatic vertical feed structure and cutter frame setting are frequent problems in the cutter frame of B665 transverse planing machine.

B665牛头刨床的刀架存在没有自动抬刀装置，没有自动垂直进给机构，以及刀架落刀等问题。

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