July 27, 2023
Induction quenching and laser quenching which is more suitable for automotive cover part molds and automotive interior panel part molds
The conclusion is that only automated induction quenching can interpret the mold man's requirements for mold quenching, and realistically achieve deformation-free, high-efficiency, low-cost quenching for large molds. Although laser quenching has a wide range of applications in many fields, covering parts mold quenching is somewhat impractical. Here are some discussions on the topic.
1, Induction quenching is best used in high-frequency power supply, specifically to 10KHz-25KHz, so as to ensure that the mold requirements of the hardened layer of 2-3mm requirements, laser quenching is only 0.05-0.20mm, the actual polishing can sometimes be thrown off.
2, For induction quenching, and heating simultaneously in the cooling and movement, the workpiece is too late to heat conduction. Hence, the automotive cover molds, there is almost no deformation, and do not destroy the mold processing of the original finish. And laser quenching occurs when the hardened layer of more than 0.05mm, began to have deformation, the thicker the hardened layer, the greater the deformation, due to different heating mechanisms, laser quenching will also destroy the original finish of the mold.
3. Induction quenching efficiency is dozens of times the laser quenching because it is the widest width up to 100-200mm. laser quenching is incomparable.
4. Induction hardening easy to realize multi-axis linkage control axis, continuous completion of the curve docking. The practice has proved that the complex mold to achieve straight, efficient quenching, the inductor not only accurately tracks the quenching area of the characteristic line normal but also the surface changes in real-time to adjust the tracking surface to ensure the quality of the quenching, so more than six-axis linkage can be completed. Laser quenching due to the use of carbon dioxide laser, can not complete the multi-axis linkage, so it can not work continuously, can only be segmented by manual intervention, and can not be automated.
5. Automatic induction hardening machine tools can automatically identify the mold machining number of molds, offline programming can be achieved, the programmer can complete the programming process on the computer, and does not take up the processing time, which is difficult to achieve for laser quenching.
6, Induction quenching can be directly completed by cutting edge mold, and other facade quenching can also be completed from above the projection of the invisible surface of the quenching, which is the laser can not be done at present.
7, Induction quenching after the mold deformation can be achieved on the back of the process negligible degree of perfection, fully realized after the fire without processing. Laser quenching due to the different heating mechanisms is currently unable to do without destroying the mold's original level of finish. This is essential to control the mold processing costs and manufacturing cycle.
8, Induction hardening low operating costs. It only uses electricity and no other auxiliary materials.
9, Now there is also the use of hand-held induction quenching, China's ten years about ten companies purchased hand-held induction quenching equipment, but the use of the results are not good, the vast majority of them are idle, individual companies used to deal with small inlays. The main reason is that manpower cannot control the heating speed, distance, temperature, water, wind, and direction. CNC induction hardening machine tools can be adjusted according to the requirements of different materials and quenching processes, distance, speed, and direction, fully meeting the needs of mold quenching.
10, The use of CNC induction quenching machine tools, can be appropriate to reduce the performance of the mold material and save a lot of post-fire machining and mold repair time, to meet the requirements of the use of molds to improve the quality of molds and service life, and greatly save costs.
