A mechatronics approach to laser powder deposition process

Toyserkani, Ehsan; Khajepour, Amir

doi:10.1016/j.mechatronics.2006.05.002

Cited by 82 publications

(25 citation statements)

References 13 publications

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“…3) could be used for process planning or design, analytical models are the classic way to increase understanding of an unfamiliar aspect of the process, and there are other opportunities for modelling in control that have not even been touched on here. [104][105][106][107][108][109][110] There is still plenty of opportunity for genuinely better models and these could benefit the laser community in multiple ways.…”

Section: Discussionmentioning

confidence: 99%

Advances in the modeling of laser direct metal deposition

Pinkerton

2014

Journal of Laser Applications

137

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This paper provides a review of the current state of the art in modeling of laser direct metal deposition and cladding processes and identifies recent advances and trends in this field. The different stages of the process and the features, strengths and weaknesses of models relating to them are discussed. Although direct metal deposition is now firmly in the industrial domain, the benefits to be gained from reliable predictive modeling of the process are still to be fully exploited. The genuine progress there has been in this field in the last five years, particularly in discretized modeling, means modeling cannot be overlooked as an enabling method for academia and industry, but there is still more work to be done.

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Section: Discussionmentioning

confidence: 99%

Advances in the modeling of laser direct metal deposition

Pinkerton

2014

Journal of Laser Applications

137

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“…A different approach for addressing the same problem of height monitoring and geometry control is proposed by Fathi et al [167], Toyserkani and Khajepour [27], and filed as patents in Refs. [168] and [169].…”

Section: -4 / Vol 136 December 2014mentioning

confidence: 99%

A Review on Process Monitoring and Control in Metal-Based Additive Manufacturing

Tapia

Elwany

2014

Journal of Manufacturing Science and Engineering

574

188

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There is consensus among both the research and industrial communities, and even the general public, that additive manufacturing (AM) processes capable o f processing metal lic materials are a set o f game changing technologies that offer unique capabilities with tremendous application potential that cannot be matched by traditional manufacturing technologies. Unfortunately, with all what AM has to offer, the quality and repeatability o f metal parts still hamper significantly their widespread as viable manufacturing proc esses. This is particularly true in industrial sectors with stringent requirements on part quality such as the aerospace and healthcare sectors. One approach to overcome this challenge that has recently been receiving increasing attention is process monitoring and real-time process control to enhance part quality and repeatability. This has been addressed by numerous research efforts in the past decade and continues to be identified as a high priority research goal. In this review paper, we fill an important gap in the liter ature represented by the absence o f one single source that comprehensively describes what has been achieved and provides insight on what still needs to be achieved in the field o f process monitoring and control fo r metal-based AM processes.

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“…Variations of the quality may even be observed between processing cycles performed under the same operating conditions. This poor reproducibility arises from the high sensitivity of laser powder fabrication to small changes in the operating parameters such as laser power, positioning device velocity and powder feed rate, as well as to process disturbances such as variations in absorptivity [31]. A poor thin wall, deposited with fluctuation in the process parameters, is shown in Fig.…”

Section: Variations Of Part Qualitymentioning

confidence: 99%

The state-of-the-art laser bio-cladding technology

Liu

Fuh

2010

SPIE Proceedings

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The current state and future trend of laser bio-cladding technology are discussed. Laser bio-cladding is used in implants including fabrication of metal scaffolds and bio-coating on the scaffolds. Scaffolds have been fabricated from stainless steel, Co-based alloy or Ti alloy using laser cladding, and new laser-deposited Ti alloys have been developed. Calcium phosphate bioceramic coatings have been deposited on scaffolds with laser to improve the wear resistence and corrosion resistence of implants and to induce bone regeneration. The types of biomaterial devices currently available in the market include replacement heart valve prosthesis, dental implants, hip/knee implants, catheters, pacemakers, oxygenators and vascular grafts. Laser bio-cladding process is attracting more and more attentions of people.

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A mechatronics approach to laser powder deposition process

Cited by 82 publications

References 13 publications

Advances in the modeling of laser direct metal deposition

Advances in the modeling of laser direct metal deposition

A Review on Process Monitoring and Control in Metal-Based Additive Manufacturing

The state-of-the-art laser bio-cladding technology

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