Environmental assessment of laser assisted manufacturing: case studies on laser shock peening and laser assisted turning

Zhao, Fu; Bernstein, William Z.; Naik, Gautam; Cheng, Gary J.

doi:10.1016/j.jclepro.2010.04.019

Cited by 44 publications

(12 citation statements)

References 19 publications

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“…plasma, gas torch, electrical current heating). Laser assisted machining (LAM) has been reported to offer many advantages, such as reducing cutting forces [13,14] and specific machining energy [15,16], suppressing chatter [17], increasing material removal rates [18], extending tool life [19,20], minimizing residual stresses [21,22], generating crack-free machined surfaces [23], and diminishing environmental impact [24]. Accordingly, the LAM process is a very promising way to make these difficult-to-cut materials easier to machine [25].…”

Section: Introductionmentioning

confidence: 99%

On modelling of laser assisted machining: Forward and inverse problems for heat placement control

Shang

Liao

Sarasua

et al. 2019

International Journal of Machine Tools and Manufacture

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Laser assisted machining (LAM) is one of the most efficient ways to improve the machinability of difficultto-cut materials (e.g. Nickel-based superalloys). In the conventional LAM process, the laser beam is focused ahead of the cutting area at a fixed location, which leads to a series of restrictions, e.g. small heating area and non-uniform heat distribution due to the limitation of beam size and energy distribution. In this paper, a novel spatially and temporally (S&T) controlled laser heating method was proposed, in which a large area can be heated up with a small laser spot by controlling the beam scanning, i.e., laser power, path and speed of scanning. The laser configuration for the prescribed HAZ (heat affected zone) was achieved by solving the inverse problem where the laser power together with either laser path or laser speed were optimised to achieve a particular temperature distribution in the chip to be removed by the following milling cutter. The proposed S&T laser heating method was thoroughly validated both for the forward and, the more important, inverse heating models by performing extensive temperature experiments by both infrared thermal camera and thermocouple array and further verified by laser assisted milling (LAMill) tests of Inconel 718 for large widths of cuts. The results showed that by applying path-optimised LAMill based on the inverse solution of the thermal problem, the peak and mean principal cutting forces were reduced by 55% and 47.8% respectively compared with the conventional dry milling process while the surface roughness improved by at least 14%. Moreover, after controlling the HAZ using the inverse thermal problem, a microstructure analysis of the machined surface showed that the proposed laser heating method avoids overheating of the workpiece below the planned depth of cut for the milling operation.

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Section: Introductionmentioning

confidence: 99%

On modelling of laser assisted machining: Forward and inverse problems for heat placement control

Shang

Liao

Sarasua

et al. 2019

International Journal of Machine Tools and Manufacture

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“…LCA studies on laser assisted manufacturing processes are generally limited to powder metallurgy processes, i.e. DMD (Morrow et al, 2007) and LENS Ò (Xiong et al, 2008), even if LCA could be performed for other laser assisted manufacturing processes, such as laser assisted surface treatment and laser assisted machining (Zhao et al, 2010). To the authors' best knowledge, there is no published work on a comprehensive approach to the environmental impacts at each step for laser additive deposition and conventional method.…”

Section: Introductionmentioning

confidence: 99%

Environmental comparison of MESO-CLAD® process and conventional machining implementing life cycle assessment

Serres

Tidu

Sankaré

et al. 2011

Journal of Cleaner Production

138

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“…On the environmental side, studies considered that additive manufacturing cause fewer impacts than the traditional processes (ZHAO et al, 2010;HUANG et al, 2013). By using the exact amount of material needed to make the part/component and, by not needing ancillary fluids, residues generated by the manufacturing process are reduced (LUOET al., 1999, HUANG et al, 2013.…”

Section: Additive Manufacture Sustainability Reviewmentioning

confidence: 99%

Sustainable Manufacturing Strategies: A Literature Review on Additive Manufacturing Approach

Mançanares¹,

Zancul

Miguel

2015

Product

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This article aims to provide a literature review regarding sustainability in additive manufacturing. The purpose is to understand the literature main structure concerning sustainability in additive manufacturing in order to identify the field's key challenges. The article employees a systematic literature review on the main topics of sustainability in additive manufacturing. Data were collected in one of the main data bases considering the journal impact factor reports. Articles on the subject were searched and retrieved, and a content analysis was carried out. An evaluation of the challenges in this field was also performed. Additive manufacturing potentially impacts the productive process sustainability in various manners. Several are the research challenges in this field of studies. The literature on sustainability in manufacture presents numerous indicators. However, the literature on sustainability in additive manufacture lacks quantitative research to evaluate these proposed indicators. It is necessary to perform quantitative research in order to evaluate the adequacy of additive manufacturing. This literature review shows multiple additive manufacture impacts on sustainability. Promising studies point out some of these impacts, although there are still some sustainability research gaps on additive manufacturing. This article presents some of these gaps thus allowing researchers to identify research opportunities.

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Environmental assessment of laser assisted manufacturing: case studies on laser shock peening and laser assisted turning

Cited by 44 publications

References 19 publications

On modelling of laser assisted machining: Forward and inverse problems for heat placement control

On modelling of laser assisted machining: Forward and inverse problems for heat placement control

Environmental comparison of MESO-CLAD® process and conventional machining implementing life cycle assessment

Sustainable Manufacturing Strategies: A Literature Review on Additive Manufacturing Approach

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