Laser surface hardening treatment method for diaphragm-spring separation finger tip
A diaphragm spring and hardening treatment technology, applied in heat treatment furnaces, heat treatment equipment, furnaces, etc., can solve the problems of poor plastic deformation resistance, affecting the working quality and service life of clutches, etc., and achieve low cost, improve processing quality, and high quality effect
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example 1
[0012] Example 1: Quenching the end of the separation finger of the 180DB diaphragm spring; the required hardened zone range at the end of the separation finger is 14±1mm; the specific operation is as follows: see figure 1 Place the processed diaphragm spring 5 on the turntable mechanism 1, a HANSGS-H3000 multimode cross-flow laser 2 is installed next to the turntable mechanism 1, and the laser head 3 faces the separation finger end of the diaphragm spring 5, A Laval nozzle 4 is arranged immediately after the laser head 3, and its nozzle is facing the separation finger end of the diaphragm spring 5. The Laval nozzle 4 is externally connected to a high-pressure air source, and the turntable mechanism 1 is started to rotate, and the speed is separated by the diaphragm spring. Refers to the setting of the tip line speed of 20mm / s (that is, to realize the laser scanning speed and wind sweeping speed), set the laser power to 1.8kw, and the spot size to 14mm×1.2mm (obtained by focusi...
example 2
[0013] Example 2: Quenching the end of the separation finger of the 330DB diaphragm spring, the required hardening area range of the end of the separation finger is 16±1mm; the specific operation is the same as in Example 1, the difference is that the turntable mechanism and the speed are separated by the diaphragm spring The linear velocity of the finger tip is set at 18mm / s, the laser power is set at 2kw, the spot size is 16mm×1.2mm, and the air cooling parameters are the same as in Example 1. Thus, the surface hardness value of the diaphragm spring separation finger tip is as high as 61HRC, and the depth of the hardened layer is 0.5mm. The diaphragm spring was assembled on the clutch assembly for 1 million wear-resistant bench tests, and the test results showed that the average wear amount was 0.06mm.
example 3
[0014] Example 3: Quenching the end of the separation finger of the 430DTP diaphragm spring, the required hardening area range of the separation finger end is 20±1mm; the specific operation is the same as Example 1, the difference is that the turntable mechanism and speed are based on the diaphragm spring The linear velocity at the end of the separation finger is set at 16mm / s, the laser power is set at 2.3kw, the spot size is 20mm×1.2mm, and the air cooling parameters are the same as in Example 1. The surface hardness value of the end of the diaphragm spring separation finger is as high as 62HRC, hardened The layer depth was 0.5 mm. The diaphragm spring was assembled on the clutch assembly for 1 million wear-resistant bench tests, and the test results showed that the average wear amount was 0.06mm.
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