Laser Surface Heat Treatment Used for Induction of Residual Stresses into Circular Saw Blades for Better Working Behaviour

1990 ◽  
pp. 291-302
Author(s):  
H. K. Tönshoff ◽  
A. R. Rosenthal
Keyword(s):  
Heat Treatment ◽  
Residual Stresses ◽  
Surface Heat ◽  
Laser Surface ◽  
Circular Saw

A new approach to control and optimize the laser surface heat treatment of materials

2018 ◽  
Vol 262 ◽  
pp. 492-502 ◽  
Author(s):  
Sagar V. Telrandhe ◽  
Jayabalan Bhagyaraj ◽  
Sushil Mishra ◽  
Shyamprasad Karagadde
Keyword(s):  
Heat Treatment ◽  
Surface Heat ◽  
Laser Surface ◽  
New Approach

scholarly journals Tempering Effects of Multitrack Laser Surface Heat Treatment of AISI 1045 Steel

2019 ◽  
Vol 31 (3) ◽  
pp. 1091
Author(s):  
Chi-Liang Kung ◽  
Hao-En Shih ◽  
Chao-Ming Hsu ◽  
Cheng-Yi Chen
Keyword(s):  
Heat Treatment ◽  
Surface Heat ◽  
Laser Surface ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
1045 Steel

Effect of Laser Surface Heat Treatment on Wear and Hardness Resistance of Metal Matrix Composite from (Al- 6061+ SiC Particles)

2021 ◽  
Vol 1039 ◽  
pp. 86-95
Author(s):  
Mohammed Z. Hasan ◽  
Mahmood A. Mohammed ◽  
Isam E. Yousif
Keyword(s):  
Heat Treatment ◽  
Wear Resistance ◽  
Composite Material ◽  
Aluminum Alloy ◽  
Base Alloy ◽  
Surface Heat ◽  
Laser Surface ◽  
Al 6061 ◽  
Sic Particles ◽  
Prepared Composite

In this paper, the effect of laser surface heat treatment on wear resistance and hardness of an aluminum alloy Al-6061 as a base material with different ratios of SiC particles as an additive was studied. The composite material was prepared from Al-6061 aluminum alloy and particles with a granular size of (10-70) μm with different weight ratios (15%, 12%, 9%, 6%, 3%), where the stirred plumbing technique was used to ensure An increase in the wettability of SiC particles in the base alloy fuse and the possibility of distributing it uniformly. The laser surface heat treatment of the composite material prepared using the Neodymium - YAG laser was performed with a power of 1J, a wavelength of 1.06 μm, a pulse time of 5 m sec, and a distance of 30 cm between the exit area of the laser from the system and the piece to be thermally treated. The results showed an improvement in the mechanical properties of the prepared composite material (hardness, wear resistance) after performing the surface heat treatment by laser. The increase in the hardness amount was 12.9% when adding 15% of particles to the base alloy. The results showed that the wear rate value decreases with increasing the added percentages of SiC particles. The results also showed that the surface heat treatment of the laser led to an improvement in the wear resistance of the prepared composite material and for all the added ratios of SiC particles at different loading pressures used and in close proportions. Also, the prepared samples were photographed using a regular optical microscope before and after the laser surface heat treatment.

Integrated Process of Laser-Assisted Machining and Laser Surface Heat Treatment

2013 ◽  
Vol 135 (6) ◽  
Author(s):  
Bin Shi ◽  
Helmi Attia
Keyword(s):  
Heat Treatment ◽  
Finite Element ◽  
Element Model ◽  
Surface Heat ◽  
Laser Surface ◽  
Fe Model ◽  
Two Dimensional ◽  
Numerical Investigations ◽  
Laser Assisted Machining ◽  
Dimensional Finite Element

A process is proposed for integrating the laser-assisted machining (LAM) and laser surface heat treatment (LSHT) in a single operation. Experimental and numerical investigations were carried out. LSHT tests were performed to investigate the effect of the process parameters on the microstructure evolution and hardenability. A methodology and an empirical model for prediction of hardened depth were proposed. A two-dimensional finite element (2D-FE) model was developed to predict the phase transformation during the LAM and LSHT processes. The optimization of the LAM process was also investigated using the developed finite element model.

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