锯片在使用过程中 ,经常出现裂纹、崩齿和振动问题。针对这种情况 ,采用激光淬火锯片齿尖代替原有的热处理工艺处理锯片齿尖。由于激光淬火形成的淬硬层较薄 ,组织晶粒比较细小 ,硬度较高 ,耐磨性较好 ,而锯齿内部仍保持良好的韧性。在采用激光淬火时 ,通过金相检验、有限元模拟并合理选择激光工艺参数和严格控制淬火区域 ,保证了激光淬火的锯片齿尖具有高的耐磨性和抗冲击性能 ,从而不易出现崩齿、断齿和齿尖腐蚀等现象。另外 ,在保证锯齿有良好的锯切性能的同时 ,锯片的振动和稳定性问题也是一个不容忽视的问题。而激光强化可改变锯片的应力分布 ,对锯片的振动特性有很大的影响。激光强化的效果取决于激光的工艺参数 :激光功率和扫描速度。经理论计算和生产实践检验 :通过合理选择激光的工艺参数对锯片进行处理 ,可延长锯片的使用寿命并能很好地保证锯切质量减少噪声 Saw blade in use, often appear cracks, teeth and vibration problems. In response to this situation, the use of laser hardening blade tip instead of the original heat treatment process blade tip. As the hardened layer formed by laser hardening thinner, the organization of relatively small grains, high hardness, good wear resistance, while the serrated still maintain good toughness. In laser quenching, through metallographic examination, finite element simulation and reasonable selection of laser process parameters and strict control of the quenching area to ensure that the laser-hardened saw blade tip with high wear resistance and impact resistance, which is not prone to collapse Tooth, broken teeth and tooth tip corrosion and so on. In addition, to ensure good sawing sawing performance at the same time, the vibration and stability of the blade is also a problem that can not be ignored. The laser can change the stress distribution of the blade, the vibration of the saw blade has a great impact. The effect of laser hardening depends on the laser’s process parameters: laser power and scanning speed. Theoretical calculation and production practice test: Through the reasonable choice of the laser process parameters on the blade processing, can extend the life of the blade and can well ensure the quality of sawing to reduce noise