Quenched steel part dry state and wet state coordinated cutting method

A technology for cutting and processing hardened steel, which is applied in the field of dry and wet cutting of hardened steel parts, which can solve problems such as the adverse effects of cutting tools and machined parts accuracy, so as to avoid scrap rate, reduce processing difficulty, and improve personnel efficiency effect

Inactive Publication Date: 2014-11-05
JOUDER PRECISION INDAL KUSN
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Therefore, simply using dry turning or wet turning will have a

Method used

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  • Quenched steel part dry state and wet state coordinated cutting method
  • Quenched steel part dry state and wet state coordinated cutting method

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] like figure 1 As shown, a hardened steel part requires HRC: 64-67 for hardness, 0.01 mm for profile, and Ra: 0.1 μm for surface roughness. Usually hard turning requires HRC: 55-64 for hardened steel, machining accuracy IT5 level, surface roughness Ra≤0.4μm. Obviously, the requirements for the hardened steel parts processed this time are relatively high.

[0022] like figure 2 As shown in the figure, in order to improve the quality of the parts, the machine tool used this time adopts a hydrostatic spindle, and the clamping device adopts three claws after quenching and tempering to clamp the parts; a higher hardness turning tool holder is used, in order to maximize the hard turning system rigidity and accuracy.

[0023] The specific processing method is as follows:

[0024] The first step: write the processing program: mainly to set the tool path of the CNC ...

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Abstract

The invention discloses a quenched steel part dry state and wet state coordinated cutting method. The method includes the steps that firstly, a numerically controlled lathe system machining program is compiled; secondly, the specification of a blade and the type of a tool bar are determined, and cutting parameters and the lane tip zero compensation amount are input in a tool setting mode; thirdly, tempered three jaws are utilized to clamp a workpiece; fourthly, a part is roughly turned and the allowance is left in a single side, wherein cutting liquid is not used in the machining process; fifthly, the part is machined in a semi-finish mode, and the allowance is formed, wherein the cutting liquid is not used in the machining process; sixthly, the cooling liquid is started to be sprayed on a lathe tool bit, and the external diameter and the end face are machined in place together. According to the quenched steel part dry state and wet state coordinated cutting method, the defects in the prior art are overcome, the rejection rate of parts are effectively reduced, the machining difficulty of the parts is lowered, and staff efficiency is improved.

Description

technical field [0001] The invention relates to a dry-state and wet-state coordinated cutting processing method for hardened steel parts, belonging to the technical field of mechanical processing. Background technique [0002] Hard turning is a clean machining process, and in most cases, no coolant is required for hard turning. Because the high temperature generated by the tool tip during dry turning is sufficient to toughen the pre-cut area, reducing the hardness of the material and making it easier to shear. In the wet turning process using coolant, if the cooling rate is too high, this effect of cutting force will be reduced, thereby accelerating mechanical wear and shortening tool life. [0003] In practical applications, the coolant can also obtain the lubrication effect of high temperature in the cutting area, and it is beneficial to use the coolant for wet cutting on the surface of parts with a certain roughness. [0004] Therefore, simply using dry turning or wet t...

Claims

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Application Information

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IPC IPC(8): B23B1/00
CPCB23B1/00
Inventor 王仲伟陈志伟杨加华
Owner JOUDER PRECISION INDAL KUSN
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