Local Laser Bionic Blocking Experimental Study of Hot Work Mould Surface Cracks
For the short life of hot work die in enterprise directly caused problems the waste of resources and the rising cost of production. Based on studying the biological prototype of crack-resistance of plant lamina and found that surface thermal fatigue crack is one of the main factors affecting the service life of hot work mould, it is put forward thoughts about the local bionic laser melting on mould surface to block cracks. Different from the traditional mould surface integral laser transformation hardening (LTH) technology, using laser melting simulating plant lamina to block cracks on the partial surface of mold, life of bionic strengthened die is improved within 1~1.5 times. Experiment results show that a new method is provided to improve the service life of casting mould and promoting this technology will bring significant economic benefits for the mould industry.
Guofu Li and Valery Ya. Shchukin
K. P. Zhao et al., "Local Laser Bionic Blocking Experimental Study of Hot Work Mould Surface Cracks", Applied Mechanics and Materials, Vols. 201-202, pp. 491-494, 2012