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A Laser Strengthening Process for Shaft Workpieces

A shaft workpiece, laser strengthening technology, applied in the field of laser heat treatment, can solve the problems of high energy consumption, long production cycle, pollution, etc., and achieve the effects of improving production efficiency, intuitive operation, and improved wear resistance

Active Publication Date: 2021-03-30
SINOSTEEL XINGTAI MACHINERY & MILL ROLL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although traditional induction hardening can meet the requirements of production and use, there are problems such as large energy consumption, serious pollution, and long production cycle.

Method used

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  • A Laser Strengthening Process for Shaft Workpieces
  • A Laser Strengthening Process for Shaft Workpieces
  • A Laser Strengthening Process for Shaft Workpieces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A laser strengthening process for a shaft workpiece in this embodiment includes the following steps,

[0027] Step 1. Surface treatment is carried out on the surface of the shaft workpiece, and the oxide on the surface of the shaft workpiece is removed by using sandpaper, a hair brush or an angle grinder;

[0028] Step 2. Fix the surface-treated shaft workpiece on the chuck of the rotary machine tool;

[0029] Step 3. Set appropriate laser parameters according to the technological requirements of shaft workpieces, the laser parameters include spot size, power, and scanning speed;

[0030] The spot size is 8mm×8mm, the scanning speed is 20mm / s, and the quenching temperature is 1300℃

[0031] Step 4, write the robot program;

[0032] Step 5. Run the robot program to make the laser beam quench the shaft workpiece according to the laser parameters set in step 3;

[0033] Step 6. After the quenching treatment in step 5 is completed, loosen the chuck and remove the shaft w...

Embodiment 2～4

[0038] The process steps of Examples 2 to 4 are similar to those of Example 1. The difference from Example 1 is that the laser parameters are different, see Table 1, and then control the depth, hardness, and hardness drop of the hardened layer of shaft workpieces. For specific parameters, see Table 2.

[0039] Table 1 Comparison Table of Laser Parameters in Embodiments 1 to 4

[0040]

[0041]

[0042] Table 2 Comparison Table of Depth, Hardness, and Hardness Drop of Hardened Layer of Examples 1-4 Shaft Workpieces

[0043]

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Abstract

The invention discloses a laser strengthening process for shaft workpieces, and belongs to the technical field of laser heat treatment. The laser strengthening process comprises the following steps: 1, performing surface treatment on the surfaces of the shaft workpieces; 2, fixing the shaft workpieces after surface treatment on a chuck of a rotary machine tool; 3, setting appropriate laser parameters according to technological requirements of the shaft workpieces, wherein the laser parameters comprise spot size, power and scanning speed; 4, writing a robot program; 5, running the robot programto enable laser beams to perform quenching treatment on the shaft workpieces according to the laser parameters set in step 3; 6, after finishing quenching treatment in step 5, loosening the chuck anddischarging the shaft workpieces; 7, checking the depth and hardness of hardened layers of the shaft workpieces. The laser strengthening process for the shaft workpieces has the advantages that production efficiency is improved, the production period is shortened, energy consumption is reduced, environmental pollution is reduced, and the process can be suitable for severe working condition environments.

Description

technical field [0001] The invention relates to a laser strengthening process, in particular to a laser strengthening process for shaft workpieces, and belongs to the technical field of laser heat treatment. Background technique [0002] The shaft is a part that supports the rotating parts and rotates with them to transmit motion, torque or bending moment. Due to the harsh working conditions, the wear-resistant parts of some shaft workpieces need a certain hardness and wear resistance. In order to achieve the Performance requires heat treatment of shaft workpieces, and the traditional heat treatment method is induction hardening. [0003] Although traditional induction hardening can meet the requirements of production and use, it has problems such as high energy consumption, serious pollution, and long production cycle. Contents of the invention [0004] The object of the present invention is to provide a laser intensification process for shaft workpieces, which can impro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21D9/28C21D1/09
CPCC21D1/09C21D9/28
Inventor 梁鹏郭计山
Owner SINOSTEEL XINGTAI MACHINERY & MILL ROLL