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Shiyan Hengjin Induction Technology Co.,Ltd
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Induction Hardening or Laser Hardening? Which is more Suitable for Automotive Mold Hardening Process
On the induction hardening and laser hardening, which hardening process is more suitable for automotive cover mold and automotive interior plate mold, through practice, and finally settled. It is concluded that only the automated induction hardening can meet the requirement of mold hardening, and the reality is to realize the deformation, high efficiency and low cost hardening of the large mold. Although the laser hardening in many areas have a wide range of applications, but the cover mold quenching is somewhat unrealistic. The following two kinds of hardening process for a ten-point comparison.

Hardened Layer Depth
Induction hardening is best to use high and medium frequency heating power, usually 10kHz to 25kHz, so that the mold can be required to ensure that the hardened layer of 2 to 3mm requirements, laser hardneing only 0.0 to 0.20mm, the actual mold in the polishing , This layer of thin hardened layer can sometimes throw away.
Hardened Layer Deformation
For induction hardening, the heating at the same time in the cooling and moving, the workpiece is not less heat conduction, so the car cover mold, almost no deformation, do not destroy the original mold processing finish. And laser quenching when the hardened layer more than 0.05mm, began to deformation, hardened layer thicker, the greater the deformation, due to different heating mechanisms, laser quenching will destroy the original mold finish.
Work Efficiency
The efficiency of induction hardening is several times that of laser hardening, because its width is as wide as 100 to 200mm, which is unmatched by laser hardening.
Automatic Hardening
Induction hardening easy to achieve multi-axis linkage control axis, continuous completion of the curve docking. Practice has proved that the complex mold to achieve continuous and efficient hardening, the sensor not only to accurately track the hardening area of the characteristic line normal, but also to the surface changes in real-time tracking surface to adjust to ensure the quality of hardening, so to six axis above the linkage to complete. Laser hardening due to the use of carbon dioxide laser, can not complete multi-axis linkage, it can not work continuously, only sub-manual intervention, can not be automated.
Intelligent Hardening
Intelligent induction hardening machine can automatically identify the mold CNC machining, can be achieved offline programming, programmers can complete the programming process on the computer, do not take up processing time, which is difficult to achieve laser hardening.
Hardening Difficulty
Induction hardening can be directly completed trimming die facade hardening, but also from the above projection can not see the surface of the hardening, which is currently unable to do the laser.
Hardening Deformation
After the induction hardening mold deformation can be done on the back of the process of ignoring the degree of perfection, fully realized after the fire is not processed. Laser hardening due to the different heating mechanism is still unable to do so does not destroy the original level of mold finish. This is essential to control the processing cost and manufacturing cycle of the mold.
Operating Costs
Induction hardening operation is low cost. It only electricity, no other auxiliary materials.
CNC Induction Hardening
Now there are hand-held induction hardening, during ten years, about 10 companies to buy handheld induction hardening equipment, but the effect is not good, the vast majority are idle, individual companies to deal with small inserts. The main reason is that it is difficult to control the speed of heating, distance, temperature, water, air volume and direction. CNC hardening machine according to different materials and hardening process requirements, adjust the distance, speed and direction, fully meet the needs of mold hardening.
Mold Life, Quality and Cost
The use of CNC hardening machine, may be appropriate to reduce the performance of mold materials and save a lot of fire processing and repair time to meet the requirements of the mold to improve the quality of the mold and life, significant cost savings.

Shiyan Hengjin Induction CNC hardening machine can fully meet the automotive cover mold and automotive interior mold parts of the process requirements. Hardening machine can be equipped with intelligent, high degree of automation configuration, to achieve automatic batch induction hardening of workpiece for customers to improve production efficiency and cost savings.


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