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dimensional control

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290169
EISBN: 978-1-62708-319-5
... practices adopted as well as provides information on dimensional control and related concerns of sintering. Cost issues associated with sintering are finally covered. density dimensional control sintering sintering densification After shaping and first-stage binder removal, the component...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2018
DOI: 10.31399/asm.tb.aceg.t68410253
EISBN: 978-1-62708-280-8
... coupon/holder 100 % pass 8 Heat Treat See the section on heat treatment in section 10.3.2 in this chapter 100 % pass See the section on heat treatment in section 10.3.2 in this chapter 100 % pass 9 Casting Process See the section on dimensional control in section 10.3.2 in this chapter 100...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290001
EISBN: 978-1-62708-319-5
..., distortion is calculated using size measurements at several locations, giving the standard deviation in size divided by the mean size. Dimensional control is captured by examining the same dimension but performing the measurement over repeated components. The resulting quantification is via the coefficient...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290261
EISBN: 978-1-62708-319-5
...-temperature sintering. Binder chemistry impacts the binder-removal process. binder jet. An additive manufacturing technique where computer-controlled binder jets bond particles into a green body, layering powder with binder deposited on each layer. A three-dimensional object forms the layer stack. Bingham ow...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.9781627083195
EISBN: 978-1-62708-319-5
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
... in the dimensional change within a part, which is usually caused by green density variations, can lead to distortion of the part. Factors Affecting Dimensional Change Dimensional change is influenced by a large number of material- and process-related parameters, not all of which can be monitored or controlled...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720393
EISBN: 978-1-62708-305-8
... Abstract Fabricated powder metallurgy (P/M) parts are evaluated and tested at several stages during manufacturing for part acceptance and process control. The various types of tests included are dimensional evaluation, density measurements, hardness testing, mechanical testing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.tb.ahsssta.t53700225
EISBN: 978-1-62708-279-2
... to stamping inconsistencies or even failure. High-strength steel and AHSS are less formable than mild steel, and parts made from them lack dimensional control because of the significant amount of springback that they produce after forming. The increased use of AHSS to achieve weight reduction...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480075
EISBN: 978-1-62708-318-8
... Abstract Titanium alloys respond well to heat treatment be it to increase strength (age hardening), reduce residual stresses, or minimize tradeoffs in ductility, machinability, and dimensional and structural stability (annealing). This chapter describes the phase transformations associated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900119
EISBN: 978-1-62708-350-8
... unpredictable dimensional change in a component due to thermal processing or temperature variations and loading in service. This chapter describes two types of distortion: size distortion and shape distortion. It addresses how distortion can be managed by controlling certain factors. The chapter discusses...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040107
EISBN: 978-1-62708-300-3
... Abstract Forging machines vary based on factors such as the rate at which energy is applied to the workpiece and the means by which it is controlled. Each type has distinct advantages and disadvantages, depending on lot size, workpiece complexity, dimensional tolerances, and the alloy being...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... and dimensional inspections, weight testing, and hardness testing. However, for castings that are to be used in critical applications, such as automotive or aerospace components, additional methods of nondestructive inspection are used to determine and to control casting quality. Visual Inspection Visual...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
... of the melt. This shrinkage can continue for a period of time after the part is removed from the mold. It is important that the shrinkage be repeatable, so the mold can be appropriately sized. For parts requiring tight dimensional control or optimal mechanical properties, uniform cooling is essential...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200206
EISBN: 978-1-62708-354-6
... and to dimensions controlled by the mold only. This equation is intended only to reflect relative effects of weight and length; the comments above concerning foundry-to-foundry differences continue to apply. Figure 16-10 presents data from the same study on the relation between casting weight and dimensional...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040237
EISBN: 978-1-62708-300-3
... dies are sometimes used in extrusion of safety parts, because they provide more uniform grain flow around corners and improved dimensional controls on net shape surfaces. Therefore, it is beneficial to investigate the occurrences of chevron cracks in extrusion with spherical dies. The objectives...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040319
EISBN: 978-1-62708-300-3
... constant. These fluctuations affect the dimensional accuracy of the forming process. The billet dimensions and material properties (flow stress) can be controlled by involving the suppliers in the design process to ensure procurement of billets with consistent dimensions and flow stress. The variation...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200197
EISBN: 978-1-62708-354-6
..., abrasive blast cleaning, removal of risers, ingates, and discontinuities, rough inspection, removal of discontinuities, finishing welding, heat treatment, and final visual, dimensional, and NDT inspection. This chapter provides a detailed discussion on these activities. finishing heat treatment...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
... rate of component production may be high, such as for die compaction, but hard tooling is required, which delays the start of production. The dimensional capability for each approach is tied to the mass variation. High-precision components require tight mass control in the forming step. Shaping...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980551
EISBN: 978-1-62708-342-3
... Ultrasonic testing Homogenization Extrusion Dimensional inspection Surface control Stretching Degree of stretching Dimensional control Age-hardening Tensile testing Conductivity Fig. 8.9 Comparison of the planning content Layout of an inspection report Table 8.7 Layout...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 1995
DOI: 10.31399/asm.tb.sch6.t68200001
EISBN: 978-1-62708-354-6
... is currently in the development phase for steel castings. Graphite Molding Graphite molding utilizes graphite molds which are semi-permanent. Dimensional control and surface appearance are excellent. This is a highly specialized process suited mainly to parts like railroad wheels. Permanent Mold...