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Published: 01 December 2006
Fig. 5.21 Influence of the finish of the bearing surface on the quality of the section surface [ Tok 88 ] No. Finish Roughness, μm Billet temperature, °C 1 Ground parallel in direction of extrusion 1.50–1.75 450 2 Ground parallel in direction of extrusion 0.50–0.75 450 More
Image
Published: 01 January 2015
Fig. 12.14 Surface appearance of a good-quality friction stir weld in 6.35 mm (0.25 in.) thick Ti-6Al-4V. Source: Ref 12.18 More
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
... Abstract The inspection of castings normally involves checking for shape and dimensions, coupled with aided and unaided visual inspection for external discontinuities and surface quality. This chapter discusses methods for determining surface quality, internal discontinuities, and dimensional...
Book Chapter

By Serdar Isbir, Pinak Barve
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040151
EISBN: 978-1-62708-300-3
... Abstract Separation of billets by shearing avoids material loss and is considerably faster than sawing or cutting. This chapter discusses the billet shearing process, the characteristics of sheared surfaces, and the effect of various operating parameters on surface quality. It also includes...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480265
EISBN: 978-1-62708-318-8
... Abstract This chapter discusses the various methods used to join titanium alloy assemblies, focusing on welding processes and procedures. It explains how welding alters the structure and properties of titanium and how it is influenced by composition, surface qualities, and other factors...
Image
Published: 01 January 2015
Fig. 9.12 Sejournet glass-lubricated extrusion process. Billet surface preparation and heating are important in contributing to extruded surface quality. More
Image
Published: 01 August 2018
Fig. 12.38 AISI 1006 steel hot rolled, pickled, and subjected to a skin pass cold work (a small cold reduction of the surface to guarantee good surface quality and precise thickness). Equiaxial ferrite and pearlite inside the plate. On the surface region, the ferrite grains are elongated More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420363
EISBN: 978-1-62708-487-1
... ) gives a useful review of the influence of die wear on metal-forming operations. The surface quality of extrusion depends on many factors. One of the most important factors is the change of die bearing surface finish due to the wear process. Die wear could be abrasive, adhesive, or both. Abrasive wear...
Image
Published: 01 August 2018
Fig. 5.2 (a) Schematic cross section through a sample subjected to polishing, indicating the three most relevant thicknesses, related to the surface quality: e r —rugosity, e d —deformed thickness, and e t —total thickness affected by the polishing process. (b) Evolution of the three More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260245
EISBN: 978-1-62708-336-2
... of the die bearing and extrusion to understand the friction model at the bearing-material interface Study of the different methods and compounds for the thin, hard coating on the bearing surface and their effect on extrusion surface quality, the die wear, and finally, the die life Design...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060175
EISBN: 978-1-62708-261-7
... inclusion requirement Special surface Carbon steel structural sections Structural quality Carbon steel plates Regular quality Structural quality Cold-drawing quality Cold-pressing quality Cold-flanging quality Forging quality Pressure vessel quality Hot-rolled carbon steel bars...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420347
EISBN: 978-1-62708-487-1
... billets cutting extrusion extrusion press heat treatment quality control stretching surface treatment IN THE ALUMINUM EXTRUSION INDUSTRY, quality is the basic key factor leading to business success, growth, and an enhanced competitive position. A substantial return on investment from...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900163
EISBN: 978-1-62708-350-8
... be expensive due to effluent problems caused by the cyanide-base plating solution, which must be neutralized. Nickel is difficult to strip, and the stripping process could affect part surface quality. Paint-On Methods Proprietary brands of stop-off paints generally contain a liquid carrier...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260087
EISBN: 978-1-62708-336-2
... and manufacture of aluminum extrusion dies with increasing complexity of shape, thickness of section, and quality of surface. Some of this experience is captured in empirical design rules, but extrusion die design is still dependent on personal judgment, intuition, and experience. No two dies of the identical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420107
EISBN: 978-1-62708-487-1
... finite-element modeling surface treatments thermodynamic properties tribology EXTRUSION supply, cost, and quality are three important factors that play a very important role in meeting the demand of aluminum extruded shapes and profiles in a competitive market worldwide. To meet the highest...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420167
EISBN: 978-1-62708-487-1
... of its economic viability. The TiB 2 -base grain refiner can elicit billet inclusions, leading to surface-quality defects in the final extruded products, especially high-gloss anodized products. A study ( Ref 5.14 ) was done by producing extrusion billets with reduced or without grain-refiner...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 June 2023
DOI: 10.31399/asm.tb.atia.t59340117
EISBN: 978-1-62708-427-7
... (when the hot mill is ready) where the temperature will be measured and recorded. Hot Rolling The process of hot rolling aluminum affects the three major attributes of sheet and plate products: dimensional , metallurgical , and surface quality . Metallurgically, the action of repeated...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420233
EISBN: 978-1-62708-487-1
... of technical and economic characteristics, including high extrudability into hollow and complex shapes, simplicity in heat treatment, good electrical conductivity, satisfactory mechanical properties, good surface finish quality, high corrosion resistance, and good weldability for a wide variety of applications...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2000
DOI: 10.31399/asm.tb.aet.t68260119
EISBN: 978-1-62708-336-2
... flow must be adjusted so that the water will wet the entire surface of the ingot being cast and cascade down its surface. The water must be prevented from bouncing off the ingot surface. In summary, the overall production performance and quality of DC cast billet are influenced by the factors...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2025
DOI: 10.31399/asm.tb.aet2.t59420291
EISBN: 978-1-62708-487-1
... for aerospace applications. Quality Requirements Extrusion defects in high-strength alloys, including speed cracking, blistering, backend extrusion, surface anomalies, and more, should be avoided by using a tight process- and quality-control system before the extrusions are shipped to the aerospace...