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two-component powder injection molding

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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: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006020
EISBN: 978-1-62708-175-7
... the design process have a major impact on production costs. Two questions about engineering design are: Can the component be fabricated, and what is the cost? Metal injection molding is competitive with many manufacturing processes. This discussion is based on 30 years of industrial success with MIM...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005503
EISBN: 978-1-62708-197-9
... to the positional vector in the mold, r = | ζ – x |, and α denotes a solid angle formed by the boundary surface. Equation 11 for two closed surfaces, such as defined by the component shape, leads to a redundancy in the final system of linear algebraic equations, so a modified procedure is used ( Ref 16...
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
... of powder injection molded and metal injection molded products Fig. 2 Flowchart for MIM component manufacturing Fig. 3 Cumulative particle size distributions for several injection molding powders show similar features in the shapes of their distributions. Also shown is the determination...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006864
EISBN: 978-1-62708-395-9
... (rotomolding) is also typically used to make hollow objects. However, rotational molding is a relatively slow process and often begins with plastic powder. Compared with other plastics processing technologies, rotational molding offers two main advantages: the ability to produce large items, and a low level...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.9781627083959
EISBN: 978-1-62708-395-9
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002491
EISBN: 978-1-62708-194-8
... in the injection molding process are produced in an extruder at the plant of the material manufacturer. The extruded product is designed as a two-dimensional cross-section shape, which is extruded in the third dimension. The third dimension is usually controlled by a cut-off operation. As an example, polyvinyl...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003053
EISBN: 978-1-62708-200-6
... of the powder system is minimized by the reduction of surface area. For most systems, the result is densification; an ideal compact sinters isotropically to yield a fully dense part. Although two compacts with different green densities can both fully densify, the shrinkage experienced by each is different...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003113
EISBN: 978-1-62708-199-3
..., where pores must be minimized or completely eliminated. There are two basic forms of powder forging: Hot upsetting, in which the preform experiences a significant amount of lateral material flow Hot re-pressing, in which material flow during densification is mainly in the direction...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006055
EISBN: 978-1-62708-175-7
... with no level sitting side. Both parts are coined, machined, polished, and plated. Courtesy of MPIF Medical Of the many applications in the medical market, two segments account for the largest number of product applications requiring MIM capabilities to produce highly complex metal components. Both...
Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005531
EISBN: 978-1-62708-197-9
..., similar to those used in plastic injection molding. The polymer/powder feedstock pellets are formed into the required part shapes using conventional injection molding machines ( Fig. 11 ). The polymer binder is partially removed from the parts by a chemical process, followed by a two-stage furnace...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006053
EISBN: 978-1-62708-175-7
... to a level necessary to maintain part integrity during handling through pressing pressure and suitable choice and amount of binder material. As discussed previously, flash is generated at the juncture of two die segments in uniaxial pressing and injection molding. These thin slivers of powder material...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006019
EISBN: 978-1-62708-175-7
... metal injection molded materials powder forged materials powder metallurgy self-lubricating bearings soft magnetic materials test method standards ONE OF THE KEY FACTORS that led to the introduction of the automated assembly line was the standardization of the production of the components...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003419
EISBN: 978-1-62708-195-5
... (through powder impregnation or commingling of reinforcing fibers with matrix fibers). In the latter case, melt impregnation must be accomplished at a later stage, either in an intermediate consolidation step or as part of final component molding. Fully impregnated thermoplastic prepregs are generally...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005255
EISBN: 978-1-62708-187-0
... removal from the mold and that the mold is destroyed to recover the casting. Related processes, in which ceramic slurries are poured against permanent patterns to make cope and drag molds, are covered in the article “Slurry Molding” in this Volume. There are two distinct processes for making...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004024
EISBN: 978-1-62708-185-6
... for injection molding and die casting. Application to forging is still in its infancy. There are two promising candidates of rapid tooling for forging: In this process, a laser beam is used to selectively fuse incremental layers of powdered materials, such as nylon, elastomer, and metal, into a solid...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002486
EISBN: 978-1-62708-194-8
... Shape Complexity Tolerances Material Systems Properties Quantity and Cost In order to understand the design restrictions of each powder processing method, it is best to review these processes individually. The P/M manufacturing methods can be divided into two main categories: (1...
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
... detrimental at a given concentration because their number is larger.) Source: Ref 4 Fig. 1 Powder metallurgy parts markets for North America, 1995. Source: Metal Powder Industries Federation Fig. 42 Hardenability, as measured by Jominy end-quench hardness traces, for two porosity levels...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002465
EISBN: 978-1-62708-194-8
... Thermoforming Resin, prepreg, SMC Short fibers, cut continuous fibers Yes Yes Yes Parallel to mold surfaces Low Medium BMC, bulk molding compound; SMC, sheet molding compound; 2D, two-dimensional; 3D, three-dimensional. (a) Pressure ranges: low, ≤100 kPa (≤15 psi); medium, 100–1725 kPa (15–250...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006093
EISBN: 978-1-62708-175-7
... ), and 304L. When two-component injection molding techniques are applied, syntactic foams can easily be combined with compact alloys in one component ( Fig. 11 ). The Foaminal process was developed at Fraunhofer Institute for Manufacturing Technology and Advanced Materials (IFAM) (Bremen, Germany...