Features of laser heat treatment of high-speed steel tools
- 42 Downloads
The life of high-speed steel tools may be increased significantly as the result of laser treatment.
Positive results are obtained only after treatment of tools with certain pulse power densities, the values of which must be determined in each specific case.
The optimum values of laser radiation pulse power density must be selected on the basis of the structure of the steel in the irradiated zone, which must be a martensite-carbide mixture formed as the result of secondary hardening occurring under the action of the laser pulse.
Deviations from the optimum conditions of laser heat treatment lead to loss of strength of the cutting edge and poorer tool service properties.
KeywordsRadiation Heat Treatment Optimum Condition Laser Pulse Positive Result
Unable to display preview. Download preview PDF.
- 1.Yu. A. Geller, Tool Steels [in Russian], Metallurgiya, Moscow (1975).Google Scholar
- 2.A. P. Brodyanskii and E. A. Anel'chishina, ,“Increasing cutting tool life by laser hardening,” Metallorezh. Kontr.-Izmer. Instr., Ekspress-Inform., Nauch.-Issled. Inst. Mashinostr. Metalloobrab., Moscow, No. 3, 15 (1979).Google Scholar
- 3.A. I. Levin, V. V. Shatalin, and D. E. Ierusalimskii, ,“Determination of the optimum method of hardening lathe turning tools by laser radiation,” [in Russian], Ukr. Nauch.-Issled. Inst. Nauch.-Tekh. Inf. Tekh.-Ekon. Issled., Kiev (1978), Dep. No. 958.Google Scholar
- 4.V. A. Burakov et al., ,“Increasing the wear resistance of R6M5 cutting tools by local laser hardening,” in: Progressive Methods of Heat Treatment in Tractor and Farm Machnery Building [in Russian], Rostov.-na-Donu Inst. Sel'sk. Mashinostr. (1979), pp. 83–87.Google Scholar
- 5.G. N. Tverdokhlebov, V. S. D'yachenko, and A. A. Korosteleva, ,“Increasing the life of metal cutting tools in laser radiation treatment,” Metallorezh. i Kontr.-Izmer. Instr-, Ékspress-Inform., Nauch.-Issled. Inst. Mashinostr. Metalloobrab., Moscow, No. 2, 21 (1979).Google Scholar
- 6.G. N. Tverdokhlebov and V. S. D'yachenko, ,“The influence of laser treatment conditions on high-speed steel tool life,” in: Modern Means of Increasing the Productivity and Accuracy of Metal Working Equipment and Automation of Production Operations in Machine Building [in Russian], Mosk. Stankoinstr. Inst., Moscow (1980), p. 111.Google Scholar
- 7.V. S. Kovalenko, Treatment of Materials by Pulsed Laser Radiation [in Russian], Vysshaya Shkola, Kiev (1977).Google Scholar
- 8.V. N. Poduraev, Machining of Heat Resistant and Stainless Materials [in Russian], Vysshaya Shkola, Moscow (1965).Google Scholar
- 9.V. S. D'yachenko et al., ,“A method of revealing the structure of the white layers formed on high-speed steels in the laser radiation process,” Zavod. Lab., No. 3, 33 (1982).Google Scholar
- 10.L. I. Mirkin, Physical Fundamentals of the Treatment of Materials by Laser Beams [in Russian], Mosk. Gos. Univ., Moscow (1975).Google Scholar
- 11.M. A. Krishtal, A. A. Zhukov, and A. N. Kokora, The Structure and Properties of Alloys Treated by Laser Radiation [in Russian], Metallurgiya, Moscow (1973).Google Scholar
- 12.V. S. Velikikh, ,“The influence of laser treatment on the wear resistance and heat resistance of tool steels,” in: The Technology and Organization of Production [in Russian], No. 4, Ukr. Nauch.-Issled. Inst. Nauch.-Tekh. Inf. Tekh.-Ékon. Issled., Kiev (1978), p. 52.Google Scholar