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laser surface treatment

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 1998
DOI: 10.31399/asm.tb.ts5.t65900305
EISBN: 978-1-62708-358-4
..., or the irradiated workpiece must be coated with a light-absorbing material. Laser and electron beam surface heat treatments are used to selectively harden localized areas of steel and cast iron components. The heat generated by irradiation is controlled to prevent melting; therefore, local regions can...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.spsp2.t54410551
EISBN: 978-1-62708-265-5
... Surface Modification Laser and electron beams provide very high energy, directed sources of heat, and are used for many surface-modification techniques. Depending on power input, high-energy beams may be used for cutting and welding, surface melting and alloying, and localized surface heat treatment...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350087
EISBN: 978-1-62708-315-7
... Abstract This chapter discusses surface engineering treatments, including flame hardening, induction hardening, high-energy beam hardening, laser melting, and shot peening. It describes the basic implementation of each method, the materials for which they are suited, and their effect on surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2024
DOI: 10.31399/asm.tb.phtpp.t59380085
EISBN: 978-1-62708-456-7
... the hardening operation. Tempering relieves the stress set up in hardening and imparts some degree of toughness to the hard case. Laser Heat Treatment Laser surface heat treatment is widely used to harden localized areas of steel and cast iron machine components. This process is sometimes referred...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350001
EISBN: 978-1-62708-315-7
... Abstract This chapter begins with a brief review of the different types of surface treatments and coatings used in industry and their effect on properties and performance. It then discusses the importance of corrosion and wear treatments and the consequences of failing to properly implement...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300335
EISBN: 978-1-62708-323-2
..., induction, laser, or electron beam is usually a lower-cost alternative than through-hardening, and it can do the same job if the material is suitable (such as 1045 to 1095 steel). Diffusion treatments such as carburizing and nitriding can create surfaces just as wear resistant as through-hardening, but one...
Image
Published: 01 March 2006
Fig. 11.55 Residual stress and cold-work distributions in Inconel 718 after various surface treatments. (a) In-plane residual stress distribution. (b) Cold work-distribution. SP, shot peening; LPB, low-plasticity burnishing; LSP, laser shock peening. Source: Ref 11.68 More
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310331
EISBN: 978-1-62708-326-3
..., and surface hardening. This chapter introduces solid-state heat treatment of iron castings, covering general considerations for heat treatment and discussing the processes, advantages, and disadvantages of heat treatment of cast iron. annealing cast iron normalizing stress relieving surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930311
EISBN: 978-1-62708-359-1
... to the weld, FCG in weldments is in fact more strongly dependent on residual stresses than on microstructure. Fig. 6 Fatigue crack growth in laser beam weldments of Ti-6Al-4V both without and with a postweld stress relief treatment of 4.5 h at 625 °C (1160 °F). (a) Fatigue crack growth parallel to weld...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2006
DOI: 10.31399/asm.tb.pht2.t51440159
EISBN: 978-1-62708-262-4
... formation occurs, after the energy transfer is completed, by self-quenching. The workpiece must be approximately 10 times the austenitized depth for effective self-quenching. This treatment, which causes minimum distortion, is used cost effectively on certain specialized applications. Laser-Surface...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350183
EISBN: 978-1-62708-315-7
... processes. For example, most heat treating job shops offer flame and induction localized hardening, but few have facilities for electron beam or laser localized surface hardening. The same can be said of diffusion heat treatments. In a survey of 800 commercial heat treating shops in the United States...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350095
EISBN: 978-1-62708-315-7
.... The chapter also covers ion implantation and laser alloying. anodizing conversion coating diffusion coating pack cementation SURFACE TREATMENTS that change the surface chemistry of a metal or alloy, but that do not involve intentional buildup or increase in part dimension, include...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350231
EISBN: 978-1-62708-315-7
... Abstract This chapter is a compilation of terms and definitions related to surface engineering for corrosion and wear resistance. corrosion resistance surface treatment wear resistance Surface Engineering for Corrosion and Wear Resistance Copyright © 2001 ASM International® J.R...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
..., and the need for contaminant-free surfaces and atmospheres. It describes common forms of fusion, arc, and solid-state welding along with the use of filler metals, shielding gases, and stress-relief treatments. It also discusses the practice of titanium brazing and the role of filler metals. arc welding...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.9781627083157
EISBN: 978-1-62708-315-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2012
DOI: 10.31399/asm.tb.smfpa.t53500317
EISBN: 978-1-62708-317-1
... hardening, case (surface) hardening, and nitriding as well as hard chrome plating, vapor deposition, and thermal diffusion coating. It explains how to measure wear resistance using various tests and provides guidelines for selecting tool materials, treatments, and coatings. chemical vapor deposition...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250001
EISBN: 978-1-62708-345-4
...), and for a shorter time. Because nitrogen inhibits the diffusion of carbon, what generally results is a shallower case than is typical for carburized parts. A carbonitrided case is usually between 0.075 to 0.75 mm (0.003 to 0.030 in.) deep. Nitriding Nitriding is another surface treatment process...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930197
EISBN: 978-1-62708-359-1
... of service failures. The discussion covers various factors that may lead to the failure of arc welds, electroslag welds, electrogas welds, resistance welds, flash welds, upset butt welds, friction welds, electron beam welds, and laser beam welds. corrosion deformation fracture inspection mechanical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350195
EISBN: 978-1-62708-315-7
..., for example, flame, induction, or laser for maximum loading, and for large rolling components (e.g., large cylindrical roller bearings and tracks). Low-Alloy Steel Parts For low-alloy steel parts (steels containing chromium, vanadium, and/or molybdenum), consider the surface treatments listed above...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390039
EISBN: 978-1-62708-459-8
... no improvement (after all, the surface hardens during frictional contact anyway), but heat treatment of alloys, to increase matrix hardness and precipitate population, does help. Conversely, diffusion of alloying elements from the die into the workpiece weakens the die and results in rapid wear (sometimes...