Turning tool machining process favorable for machining efficiency

A technology of processing efficiency and processing technology, applied in the field of lathe tool processing and manufacturing technology, to achieve the effects of simple process, reduced decarburization, good wear resistance and thermohardness

Inactive Publication Date: 2014-12-24
CHENGDU XINGBODA PRECISION MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

How to further optimize the turning tool processing technology that is beneficial to processing efficiency in the prior art is the key issue to further improve the quality of turning tools. The present invention provides a turning tool processing technology that is beneficial to processing efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The turning tool processing technology that is beneficial to processing efficiency includes sequential blank blanking, forging, cutting, heat treatment and grinding. The blank is W2MoCr4V2Co8 high-speed tool steel, and the heat treatment includes sequential preheating, heating and heat preservation, Quenching and tempering, the preheating is carried out by gradually increasing the temperature in stages, the preheating includes heating to 450-600°C in the first stage and keeping it warm for not less than 20min, and heating to 750-800°C in the second stage and keeping it warm for a lot In 20 minutes, the heating and heat preservation is to further heat the blank to 1210-1230 ° C, and heat preservation is not less than 25 minutes, the quenching is oil cooling, and an annealing step is also included between the forging and cutting. The annealing step is to The forged blank is heated step by step: heating from normal temperature to 600-650°C for no less than 10 minutes, conti...

Embodiment 2

[0019] This embodiment is further limited on the basis of Embodiment 1. In order to prevent the oil stains on the blank from affecting the heat treatment during the machining process and affect the final quality of the product, a cleaning step is also included between the cutting process and the heat treatment. The cleaning step includes a degreasing cleaning process and a drying process carried out in sequence.

[0020] Further, the quenching and tempering also include sequential degreasing and cleaning processes, drying processes and inspection processes. The set inspection process is to check the quenching quality of the blank, such as the appearance of cracks and thermal deformation, and the observation of the uniformity of quenching, so as to avoid the blanks that do not meet the quality requirements from entering the next step of processing and wasting processing resources.

[0021] In order to prevent the blank from being oxidized during the cooling process and prevent ...

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PUM

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Abstract

The invention discloses a turning tool machining process favorable for machining efficiency. The turning tool machining process comprises the following steps of discharging blank, forging, cutting machining, thermal treatment and grinding machining which are performed in sequence, wherein the blank is W2MoCr4V2Co8 high-speed tool steel; the thermal treatment comprises preheating, heating, preserving heat, quenching and tempering which are performed in sequence; the preheating is performed by heating gradually in stages; the quenching is oil cooling; the process can also comprise an annealing step between the steps of forging and cutting machining; in the annealing step, the forged blank is heated in steps. The process route is simple; the hardness value of the obtained turning tool can reach over 70 HRC; moreover, the turning tool has high wear resistance and thermal hardness.

Description

technical field [0001] The invention relates to the field of lathe tool processing and manufacturing technology, in particular to a turning tool processing technology that is beneficial to processing efficiency. Background technique [0002] In the machining industry the lathe is considered the working "mother machine" of all equipment. Lathes are mainly used to process shafts, discs, sleeves and other workpieces with rotating surfaces, mainly cylinders, and are the most widely used type of machine tools in machinery manufacturing and repair factories. Turning tools are used for turning and have a Cutting tool. Turning tool is one of the most widely used tools in cutting. [0003] With the development of modern manufacturing technology, high-speed steel turning tools are widely used in cutting. During use, the cutting part of the turning tool has to bear a lot of pressure, friction, impact and work at a higher temperature, which makes high-speed Steel turning tools are mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/30
CPCB23P15/30
Inventor 吴光武
Owner CHENGDU XINGBODA PRECISION MACHINERY
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