1-20 of 21 Search Results for

repressing

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Image
Published: 01 June 2007
Fig. 4.7 Effects of various combinations of compacting and repressing pressures on the final density of PM 316L. Source: Ref 8 More
Image
Published: 01 June 2007
Fig. 4.8 Effects of various combinations of compacting and repressing pressures on the porosity of PM 316L. Source: Ref 8 More
Image
Published: 01 December 2001
Fig. 4 Magnetization curves for hot repressed iron-phosphorus alloys More
Image
Published: 01 November 2019
Figure 15 M4 copper fill metal is dark because it is floating. Cu M7 and M6 were removed then the (20 x 10um) opening in ILD6 was made with a silane gas to repress the milling of the copper and protect the CDO. Continuing with the silane, an (18 x 8 µm) opening was made through ILD5, M5 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250139
EISBN: 978-1-62708-345-4
...–7.4 Restrike (or repress) tooling has tolerances closer to finish dimensions than the tooling for the first strike Warm compaction (single pressed) 7.2–7.5 Specially formulated powders to obtain higher green strength at lower compaction pressure Warm compaction (double pressed) 7.4–7.7...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000167
EISBN: 978-1-62708-312-6
... that affect the machinability and weldability of sintered stainless steels. joining machinability machining repressing resin impregnation sinter bonding stainless steel weldability A GREAT MAJORITY of powder metallurgy (PM) parts are well suited for their intended applications...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740373
EISBN: 978-1-62708-308-9
...). Fig. 21 Key steps during compaction and effect of compacting pressure on green density. Source: Ref 5 Density increases up to approximately 95% of theoretical can be obtained by repressing after sintering. The attainment of a high density by sintering at a high temperature and/or for a long...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000039
EISBN: 978-1-62708-312-6
... operation. The second sintering is carried out at a conventional sintering temperature. Takeda and Tamura ( Ref 8 ) studied the rate of densification in repressing using three austenitic stainless steels. Results obtained on 316L samples are shown in Fig. 4.7 as iso-density curves for various combinations...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
... delubrication, presintering, and sintering Elastic springback from tooling during cold repressing or sizing Thermal contraction from the tools used in hot forging or hot repressing Tool wear in cold or hot compacting Machining tolerances at secondary machining and associated tool wear Distortion...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170596
EISBN: 978-1-62708-297-6
... HRB … … (a) PSR, press-sinter-repress; INF, press-sinter-infiltrate; PS, press-sinter; PSE, press-sinter-extrude; IO, internal oxidation; PPSE, preoxidize-press-sinter-extrude. (b) Annealed. (c) Cold worked Refractory Metal and Carbide-Base Composites Refractory metals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000059
EISBN: 978-1-62708-312-6
... of the crevice-corrosion minimum to a higher density as a result of repressing ( Fig. 5.6 ). In pressing or repressing, densification comes about first through the collapse of the larger pores ( Ref 22 ), whereas in sintering, it is the small pores and the connections between large pores...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170614
EISBN: 978-1-62708-297-6
... . Fig. 4 Magnetization curves for hot repressed iron-phosphorus alloys Typical direct-current magnetic properties of phosphorus iron alloys Table 1 Typical direct-current magnetic properties of phosphorus iron alloys Property Compacting pressure 0.45% P compacted at pressures...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000223
EISBN: 978-1-62708-312-6
... of the compact after comple- filter. Metal filters are porous products made tion of pressing, whereby the compact is from either wires and fibers or sintered pushed through the die cavity by one of the powders. punches. Also called knockout. final density. The density of a sintered or repressed product...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130395
EISBN: 978-1-62708-284-6
.... Consequently, a distinct case is not achieved compared with the case developed on wrought parts under the same conditions. Instead, the carbon penetration in PM parts is generally deeper and relatively nonuniform. The extent of this condition varies with density. In parts that have been repressed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.9781627083126
EISBN: 978-1-62708-312-6
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000131
EISBN: 978-1-62708-312-6
... is also decreased. All these changes are unfavorable to domain wall movement. Shah et al. ( Ref 16 ) compared the magnetic properties of as-sintered and repressed 410L sensor rings. The decrease in maximum permeability due to re-pressing was typically over 80%. Annealing restored magnetic performance...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000005
EISBN: 978-1-62708-312-6
... or repressing operation. Ferritic grades are selected in some applications because of their magnetic behavior. The addition of niobium is essential to impart weldability. In PM processing, ferritic alloys undergo greater rates of shrinkage during sintering compared to austenitic alloys, thus resulting in higher...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050093
EISBN: 978-1-62708-311-9
... are then sintered (diffusion bonded) at elevated temperature in a furnace with a protective atmosphere. During sintering, the powdered metal is effectively fused together. By pressing and sintering only, parts of more than 80% theoretical density of iron can be produced. By repressing, the density can be increased...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550141
EISBN: 978-1-62708-307-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110351
EISBN: 978-1-62708-247-1
... fill metal is dark because it is floating. Cu M7 and M6 were removed then the (20 x 10um) opening in ILD6 was made with a silane gas to repress the milling of the copper and protect the CDO. Continuing with the silane, an (18 x 8 µm) opening was made through ILD5, M5 through dummy cut (10 x 6.5 µm...