Progress in research and application of laser assisted turning technique

2020 ◽  
Author(s):  
QIMING XIE ◽  
SIYUAN QIN ◽  
RUIWEN GENG ◽  
WANQING ZHANG ◽  
XIAOJING YANG
Keyword(s):  
Laser Assisted Turning

scholarly journals Laser assisted turning of Inconel 718 alloy

Mechanik ◽  
2016 ◽  
pp. 1118-1119
Author(s):  
Tadeusz Chwalczuk ◽  
Paweł Lisiak ◽  
Piotr Siwak ◽  
Damian Przestacki ◽  
Piotr Szablewski
Keyword(s):  
Inconel 718 ◽  
Inconel 718 Alloy ◽  
Laser Assisted Turning

scholarly journals Microstructure characterisation of Inconel 718 after laser assisted turning

2018 ◽  
Vol 188 ◽  
pp. 02004 ◽  
Author(s):  
Tadeusz Chwalczuk ◽  
Damian Przestacki ◽  
Piotr Szablewski ◽  
Agata Felusiak
Keyword(s):  
Inconel 718 ◽  
Laser Heating ◽  
Dendritic Structure ◽  
Cutting Speed ◽  
Cutting Parameters ◽  
Optical Microscope ◽  
Depth Of Cut ◽  
Heat Affect Zone ◽  
Molecular Laser ◽  
Laser Assisted Turning

The paper presents the discussion about the possibility of optimising heating and cutting parameters for turning under laser assisted machining (LAM) conditions. The samples of Inconel 718 after annealing and ageing were used. The laser heating experiments were carried out on the stand equipped with the CO2 molecular laser. Characterisation of samples was performed by an optical microscope, hardness measurements, scanning electron microscopy (SEM) to ensure the exact depth of heat affect zone range and to optimised further cutting parameters. Different absorbing layers for laser beam impact improvement were tested. Turning trials were performed with constant cutting speed vc = 28 m/min and feed f = 0,2 mm/rev. The influence of depth of cut ap on microstructure and its properties were investigated. It was proven that for sequential LAM dendritic structure appears in the laser affected zone of the Ni-based alloy. Such microstructures cause better machinability of Inconel 718 due to surface softening.

In-process determination of laser beam absorption coefficient for laser-assisted turning processes

2017 ◽  
Vol 92 (5-8) ◽  
pp. 2929-2938 ◽  
Author(s):  
Mostafa M. Kashani ◽  
Mohammad R. Movahhedy ◽  
Mohammad T. Ahmadian ◽  
Reza S. Razavi
Keyword(s):  
Absorption Coefficient ◽  
Laser Beam ◽  
Laser Assisted Turning

Investigation of surface integrity in the laser-assisted turning of AISI 4340 hardened steel

2021 ◽  
Vol 61 ◽  
pp. 173-189
Author(s):  
Farzad Ahmadi Khatir ◽  
Mohammad Hossein Sadeghi ◽  
Samet Akar
Keyword(s):  
Surface Integrity ◽  
Hardened Steel ◽  
Laser Assisted Turning ◽  
Aisi 4340

Laser Assisted Machining of Titanium Alloys

2013 ◽  
Vol 763 ◽  
pp. 91-106 ◽  
Author(s):  
N.M. Warap ◽  
Zazuli Mohid ◽  
Erween Abdul Rahim
Keyword(s):  
Laser Beam ◽  
Titanium Alloys ◽  
Surface Integrity ◽  
Material Properties ◽  
Processing Parameters ◽  
Machining Process ◽  
Laser Assisted Machining ◽  
Metal Processing ◽  
Mechanical Machining ◽  
Laser Assisted Turning

Laser assisted machining is categorized in preheat machining process. The laser beam used to heat up work materials is very flexible in providing a localized heat area. However the combination between two processes which has totally different fundamental has contributed to complex processing characteristics. In the case of hard to machined metal processing, problems in surface integrity and accuracy are frequently arise. Tool ware and work material properties changes are some of the issue that drove engineers and researchers to seek for optimized processing parameters. This chapter introduces resent finding in research done on laser assisted machining (LAM). Focus is given on laser assisted mechanical machining consist of laser assisted milling (LAM) and laser assisted turning (LAT).

Environmental Sustainability of Laser-Based Manufacturing: Case Studies on Laser Shock Peening and Laser Assisted Turning

2009 ◽  
Author(s):  
Fu Zhao ◽  
Gautam Naik ◽  
Li Zhang
Keyword(s):  
Life Cycle ◽  
Case Studies ◽  
Tool Life ◽  
Environmental Performance ◽  
Laser Shock Peening ◽  
Compacted Graphite Iron ◽  
Laser Shock ◽  
Compacted Graphite ◽  
Shock Peening ◽  
Laser Assisted Turning

Laser assisted manufacturing (LAM) processes, when compared with traditional manufacturing processes, have the potential to reduce cost, increase surface finish, extend part/tool life, and expand the range of manufacturable materials. However, very limited research has been done to evaluate the environmental performance of laser assisted processes and it is generally not clear how LAM processes compare with traditional methods. This paper conducts case studies on two representative laser based processes, i.e. laser shock peening of 7065 T7351 Aluminum and laser assisted turning of compacted graphite iron. Life cycle assessment is used to benchmark the environmental performance of these two processes to conventional processes, i.e. shot peening and dry turning, respectively. The life cycle inventory of both the laser based processes and conventional processes are developed using SimaPro v7.1 and Ecoinvent 2.0 and life cycle impact assessment is performed using US EPA TRACI. It is found that environmental performance of laser based processes varies significantly from process to process due to materials and energy consumption. Laser shock peening of aluminum has much better performance when over all environmental impact categories considered. Contribution analysis indicates that this is mainly due to the fact that laser shock peening does not need shot medium and at the same time significantly extends fatigue life of the workpiece. However, due to high electricity consumption and use of absorptive paint, laser assisted turning of compacted graphite iron has much higher environmental impacts than traditional dry turning, even after extending the tool life significantly.

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