An Experimental Investigation of Heat Affected Zone Formation and Morphology Development During Laser Processing of Metal Powder Mixtures  

Oleh:

Bergman, T. L. ; Buckley, C. W.

Jenis: Article from Bulletin/Magazine
Dalam koleksi: Journal of Heat Transfer vol. 123 no. 3 (Jun. 2001), page 586-592.
Topik: Finite mixture models; heat affected; zone formation; morphology development; laser; metal powder mixture

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: JJ90.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

Laser - induced melting and subsequent resolidification of a metal powder mixture consisting of low and high melting temperature materials was experimentally examined. First, the onset of melting for the low melting point material was determined and correlated with dimensionless parameters. Next, the morphologies of the heat affected zones were categorized and finally, a process map for use in rapid prototyping technology was developed. The results indicate a strong dependence of the system behaviour on the laser - material coupling efficiency and in turn, the ratio of the laser beam radius to particle size.

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