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feedstock supply

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006021
EISBN: 978-1-62708-175-7
... characteristics to be considered in the processing steps: venting, channel diameters, binder segregation, binder degradation, feedstock supply, temperature control, demolding, debinding, and sintering. Finally, the article provides information on powder injection molding mold-filling simulation and two-component...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006356
EISBN: 978-1-62708-192-4
..., oil change interval, and equipment life advantages for each lubricant application. When synthetic lubricants are examined under this approach, the benefits and value can outweigh the costs. The availability of PAO in general is dependent on the supply of its feedstock, normal alphaolefins (NAOs...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006555
EISBN: 978-1-62708-290-7
... shapes and geometric features. Additive manufacturing is also used for topology optimization and it impacts the process and supply chain. This article discusses processes, including vat photopolymerization, material jetting, powder bed fusion, directed energy deposition, material extrusion, binder...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005204
EISBN: 978-1-62708-187-0
... at the end of 2007. Electron beam melting and casting includes melting, refining, and conversion processes for metals and alloys. In electron beam melting, the feedstock is melted by impinging high-energy electrons. Electron beam refining takes place in vacuum in the pool of a water-cooled copper...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006543
EISBN: 978-1-62708-290-7
... is not crystallized when the next layer of powder is supplied to the powder bed. However, due to thermal degradation considerations and their impact on recycling, the feedstock is typically preheated to a lower temperature than the powder bed. Thermal degradation of polymer occurs through both oxidation and cross...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001053
EISBN: 978-1-62708-161-0
... such as chemicals. Recycled scrap is a major raw material for the metals industry, supplying up to 100% of the feedstock for some products. Consequently, the scrap metal recycling industry is very important to the economy, providing tens of thousands of jobs across the United States. In addition, the significant...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001462
EISBN: 978-1-62708-173-3
... to 17,000 °C, or 30,600 °F) high-velocity jet. Powder feedstock material is injected into the hot gas stream, where it melts or softens, then impacts the substrate at 250 m/s (790 ft/s). Spray rates are 0.1 kg/h/kW (0.2 lb/h/kW). The usual power supplies range from 15 to 80 kW. Higher-power plasma guns...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005718
EISBN: 978-1-62708-171-9
... Process Description Process Characteristics Process Equipment Coating Characteristics Gun Water Cooling Operating Conditions Powder-Injection Power Supplies Process Equipment Inert gas shrouds have been used in many forms since the 1960s. As described earlier...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006141
EISBN: 978-1-62708-175-7
..., which ultimately affects the feedstock viscosity. Powder vendors often report the apparent density and tap density of the powders they supply for MIM. Due to the fine particle size used in MIM, measurement of apparent density becomes difficult as the powder does not flow through the standard orifice...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.9781627081719
EISBN: 978-1-62708-171-9
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005719
EISBN: 978-1-62708-171-9
... by complex interactions subprocess variables. Mass is a complex variable, and perhaps the most significant one, in the sense that beyond process parameters and materials specifications, it is the most difficult to control because feedstock is usually a purchased commodity. The mass of spray material supplied...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006545
EISBN: 978-1-62708-290-7
... broadening within a substrate Abstract Abstract Fusion-based additive manufacturing (AM) processes rely on the formation of a metallurgical bond between a substrate and a feedstock material. Energy sources employed in the fusion AM process include conventional arcs, lasers, and electron beams. Each...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005727
EISBN: 978-1-62708-171-9
...-pressure plasma spray; HVOF, high-velocity oxyfuel Fig. 13 Feedstock morphology Fig. 26 Phenomena at flight of a solution droplet in a high-temperature plasma or flame Fig. 27 Vaporization and precipitation routes for a solute droplet Abstract Abstract This article...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005926
EISBN: 978-1-62708-166-5
... there is no carbon dioxide available or until the steel surface is completely free of carbon—at which point, if there is a continuing supply of carbon dioxide, iron and ferrous oxide will be oxidized by the following reactions: (Eq 4) Fe + CO 2 ⇌ FeO + CO (Eq 5) 3 FeO + CO 2 ⇌ Fe...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
... materials. Because of the ensuing economic and legislative incentives, recycled metals are now recognized as a vast source of natural resources for recovery. Today, recycled scrap is a major raw material for the metals industry, supplying up to 100% of the feedstock for some products. Producing many...
Book Chapter

By John C. Bittence
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003222
EISBN: 978-1-62708-199-3
... materials. Because of the ensuing economic and legislative incentives, recycled metals are now recognized as a vast source of natural resources for recovery. Today, recycled scrap is a major raw material for the metals industry, supplying up to 100% of the feedstock for some products. Producing many...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... properly defining load and service conditions for a part, materials selection is key. Most metal AM processes are highly constrained in terms of what feedstocks are viable. For example, laser PBF requires that metal powder feedstocks have a relatively prescribed size distribution and shape and a certain...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006085
EISBN: 978-1-62708-175-7
... driving a continuous supply of stock up to the die orifice by frictional gripping forces ( Ref 46 , 47 , 48 ). The die is positioned at the far end of an open chamber admitting the continuous material feed. In certain instances, trials have been conducted successfully that violate the simple rule...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002433
EISBN: 978-1-62708-194-8
... is particularly helpful in identifying primary and ancillary materials (such as pallets and glues) that are required for the system. Also identified are the sources of energy, such as coal, oil, gas, or electricity. Feedstock energies, which are defined as carbonaceous materials not used as fuel, are also...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006419
EISBN: 978-1-62708-192-4
...Comparison of thermal spray processes Table 1 Comparison of thermal spray processes Spray process Process temperature, °C (°F) Particle impact velocity, m/s (ft/s) Bond strength Oxide content Maximum feedstock rate, kg/h (lb/h) Flame spray (FS) <3160 (<5720) 50–100 (165...