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freeform-fabrication technique

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Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003397
EISBN: 978-1-62708-195-5
... materials includes particulate and fiber-reinforced polymer, ceramic-matrix composites, and metal-matrix composites. The article provides information on freeform-fabrication techniques for composite part lay-up. rapid prototyping stereolithography powder sintering hot melt extrusion sheet...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006562
EISBN: 978-1-62708-290-7
... Techniques Extrusion freeform fabrication, EFF Robocasting, RC Ceramic on-demand extrusion, CODE Freeze-form extrusion fabrication, FEF While printing using an aqueous solvent is inexpensive and environmentally friendly, the water evaporation process is relatively slow, especially for...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006022
EISBN: 978-1-62708-175-7
... (PM) process from powder production and powder processing through the characterization of the materials and their properties. It covers the processing methods for consolidating metal powders including options for processing to full density. The article outlines the freeform fabrication process, also...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006578
EISBN: 978-1-62708-290-7
... ). The AM revolution has brought new possibilities in designing and building objects with complex freeform surfaces ( Ref 20 , 21 ). Various AM processes were developed to overcome the difficulty of traditional manufacturing in terms of 3D fabrication, and a large range of materials, including difficult...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006563
EISBN: 978-1-62708-290-7
... during SLS just as in SLM, due to conditions being far from the thermodynamic equilibrium ( Ref 8 , 26 ). Selective laser melting was initially designed for 3D freeform fabrication of metals as it involves full melting ( Ref 27 ). Several techniques are similar to SLM, but under different commercial...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002449
EISBN: 978-1-62708-194-8
... goes by a variety of names, each preferred by different people with different goals for the process. The term rapid prototyping seems to include any method as long as it is fast. Some use the term solid freeform fabrication (SFF), which implies that the part is not necessarily a prototype and...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005611
EISBN: 978-1-62708-174-0
... multiple-pool welding near-net shape processing post-heat treatment pre-heat treatment selective surface treatment wire feed material-delivery method SEVERAL SOLID FREEFORM FABRICATION TECHNIQUES developed over the past decade have the ability to produce structural metal parts directly from...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006548
EISBN: 978-1-62708-290-7
... prototyping, coined the term solid freeform fabrication . These two terms perpetuated until the early 2000s, when a large number of terms came into use, some with greater popularity than others. Examples from the period include additive fabrication , additive processes , additive techniques , layer...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006572
EISBN: 978-1-62708-290-7
... traditional freeform AM techniques. This means that FSAM is somewhat limited in the types of parts and geometries it can be used to process. However, it has still proved itself as a valuable tool in the AM of metal components [ Ref 8 ]. MELD, also known as additive friction stir deposition, was developed...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003430
EISBN: 978-1-62708-195-5
... laws. While there are some processes capable of producing CMC components to near-net shape, such as the Lanxide direct metal oxidation process (High Performance Materials Group, MSE Inc., Newark, DE) ( Ref 1 ), various solid freeform techniques ( Ref 2...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.9781627082907
EISBN: 978-1-62708-290-7
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005632
EISBN: 978-1-62708-174-0
...-engineered net shape), solid freeform manufacturing, laser powder additive manufacturing, laser powder deposition, and LAM (laser additive manufacturing). Fig. 9 Laser-engineered net shape process. Courtesy of Castle Island Co. In comparison with conventional cladding methods, a near-net-shaped...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006571
EISBN: 978-1-62708-290-7
... cores are not well investigated. Mold qualities are generally specific to sand and binder specifications. It was also suggested that the direct freeform capability of BJAM makes more sophisticated sand mold designs feasible, which represents significant technology advancement. Kobliska et al...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006564
EISBN: 978-1-62708-290-7
.... 14 Schematic of thermal monitoring system that uses two wavelength measurements to calculate the true temperature of the melt pool. LENS, laser engineered net shaping; CCD, charge-coupled device. Reprinted from Ref 26 with permission from D.L. Bourell, International Solid Freeform Fabrication...
Book Chapter

By Erhard Klar
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003185
EISBN: 978-1-62708-199-3
... industries requiring large part numbers, especially the automotive industry. Manufacturing processes (“freeform powder molding”) that allow for the production of small lot sizes of P/M components without resorting to expensive hand tooling are under development ( Ref 2 ). Figure 2 shows total metal...