Results 231 to 240 of about 431,646 (304)

Innovations in Laser Cladding and Direct Metal Deposition

International Photonics and Optoelectronics Meetings, 2012
The present paper reviews recent progress in productivity, precision and quality of laser-based cladding and additive layer manufacturing. Recently, we have demonstrated the great benefits obtained from induction assisted laser cladding. This novel hybrid technology combines high deposition rates with excellent cladding properties. Laser-based direct
Frank Brückner, Steffen Nowotny, Christoph Leyens   +2 more
openaire   +1 more source

Spatial powder flow measurement and efficiency prediction for laser direct metal deposition

Surface and Coatings Technology, 2019
Powder deposition is a critical element for coating and additive processes such as laser direct metal deposition. The flow rate and distribution of the powder affect the size of the deposited tracks and the total efficiency of the process.
Daniel Eisenbarth, Konrad Wegener
exaly   +2 more sources

Research on laser direct metal deposition

SPIE Proceedings, 2003
Laser direct deposition of metallic parts is a new manufacturing technology, which combines with computer-aided design, laser cladding and rapid prototyping. Fully dense metallic parts can be directly obtained through melting the coaxially fed powders with a high-power laser in a layer-by-layer manner. The process characteristics, system composition as
Yongzhong Zhang, Likai Shi
openaire   +1 more source

Study on direct laser metal deposition

Materials Today: Proceedings, 2018
Abstract In the current economic situation with worldwide trend for developing new products, the importance of time and cost reduction increases day-by-day. To achieve this goal the man-machine-material interaction should be maximized. Direct laser metal deposition (DLMD) is one of the most famous approaches for this.
Puja Ghosal, Manik Chandra Majumder, Anangamohan Chattopadhyay   +2 more
openaire   +1 more source

In-situ monitoring and deformation characterization by optical techniques; part I: Laser-aided direct metal deposition for additive manufacturing

Optics and lasers in engineering, 2019
Metal additive manufacturing (AM), being a transformational technology with unique capabilities, has received considerable attention from both industrial and academic sectors.
W. He, W. Shi, Jiaqiang Li, Huimin Xie
semanticscholar   +1 more source

Effect of La2O3 addition on mechanical properties and wear behaviour of NiTi alloy fabricated by direct metal deposition

, 2020
Additive manufacturing of NiTi alloys has received significant attention recently, but its insufficient strength and wear resistance need to be improved. In this work, NiTi alloys with and without La2O3 addition were fabricated by direct metal deposition
B. Lu, Xiufang Cui, G. Jin, Meiling Dong, Yongchao Fang, Xin Wen, Wenyou Ma   +6 more
semanticscholar   +1 more source

An investigation on mechanical and microstructural properties of 316LSi parts fabricated by a robotized laser/wire direct metal deposition system

Additive Manufacturing, 2018
A robotized laser/wire direct metal deposition system was utilized to fabricate 316LSi coupons. The mechanical and microstructural properties were then characterized.
M. Akbari, R. Kovacevic
semanticscholar   +1 more source

Predictive control for direct metal deposition

ICALEO 2007: 26th International Congress on Laser Materials Processing, Laser Microprocessing and Nanomanufacturing, 2007
Direct metal deposition plays an important role in rapid manufacturing industry to fabricate geometrically complicated, dense, near-net-shape components. A large number of parameters are involved in the deposition process. Its present development stagnates in its control.
Lijun Song, Jyoti Mazumder
openaire   +1 more source

Model prediction for deposition height during a direct metal deposition process

2017 American Control Conference (ACC), 2017
There has been increasing demand for the development of lumped-parameter models that can be used for real-time control design and optimization for laser-based additive manufacturing (AM) processes. Our prior work developed a physics-based multivariable model of melt-pool geometry and temperature dynamics for a single-bead deposition in a directed ...
Jianyi Li, Qian Wang 0029, Panagiotis Michaleris, Edward W. Reutzel   +3 more
openaire   +1 more source

Process planning for multi-directional laser-based direct metal deposition

Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2005
Laser-based direct metal deposition has demonstrated the capability to deposit metal along multiple directions. Suitable control of parameters, namely, the metal-powder feed rate, the traverse speed, and the laser power allow fabrication of a desired shape for a large family of parts.
R Dwivedi, R Kovacevic
openaire   +1 more source