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contour-based segmentation

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003177
EISBN: 978-1-62708-199-3
... nonferrous metals. The article reviews the various types of forming processes such as blanking, piercing, fine-edge blanking, press bending, press forming, forming by multiple-slide machines, deep drawing, stretch forming, spinning, rubber-pad forming, three-roll forming, contour roll forming, drop hammer...
Book Chapter

Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006474
EISBN: 978-1-62708-190-0
... be used for accurate surface contouring. Even surfaces inside vessels can be contoured, without appreciable loss in surface detail, by the use of a scanning system placed outside the vessel. Acoustic holography can be used to inspect large composite parts, and a real-time image of a region is given...
Book Chapter

By Robert Bolin
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003982
EISBN: 978-1-62708-185-6
... production controls, parts in this family are typically formed as contours in as close to net-shape form as possible to reduce machining and waste. Parts used in aerospace include rotating and nonrotating rings for fans, engine casings, and engine disks. One of the largest segments on the market is energy...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004010
EISBN: 978-1-62708-185-6
... aircraft engines. The photographs show the complicated internal and external contours that can be roll formed. The cases were isothermally roll formed using axial-radial roll forming onto a high-strength Ni-base superalloy mandrel. In conventional forging or ring rolling processes, these types of...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006644
EISBN: 978-1-62708-213-6
... than a few arc seconds leads to the situation in which only part of the crystal fulfills the diffracting condition at a given time (i.e., Bragg contours are produced). These contours delineate those regions of the crystal that are in the diffracting condition from those that are not. Such contours can...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0001837
EISBN: 978-1-62708-181-8
... output is based on a matrix of 19 by 27 data points and is in the form of contour plots, profiles, or carpet plots. Figure 8 shows an example of the latter for a fractured Ti-10V-2Fe-3Al tensile specimen. Fig. 8 Fracture surface map (carpet plot) of a Ti-10V-2Fe-3Al specimen by...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004037
EISBN: 978-1-62708-185-6
..., yielded comparative results as follows: Specimen Failure load, kN (lbf) Deflection at failure, mm (in.) Across parting plane 15.8 (3550) 0.79 (0.0312) 17.3 (3880) 0.76 (0.0300) 17.9 (4040) 0.94 (0.0372) 18.1 (4060) 0.69 (0.0270) Base metal only 27.9 (6285) 3.84 (0.1512...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003981
EISBN: 978-1-62708-185-6
... roll forging Flat-back dies are primarily used for short-length workpieces. They are bolted to the roll shafts and can be easily changed. Typical contours for a set of flat-back segmental dies are shown in Fig. 7 . This type of roll die allows maximum time for moving the part from one impression...
Book Chapter

By Sammy Tin
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005404
EISBN: 978-1-62708-196-2
... microstructure, they allow for the identification of the temperature and stress dependence based on the rate equations presented in this article. Strain-rate contours on these deformation mechanism maps are determined using the rate equations presented in this article. The spacing and gradients of these contours...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005260
EISBN: 978-1-62708-187-0
... contoured wall thickness. However, H13 tool steel is by far the most popular mold material for high-production applications. H13 is the most wear-resistant material and has proven to be the most cost-effective material on a per casting basis. It provides the best dimensional accuracy, resistance to thermal...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003036
EISBN: 978-1-62708-200-6
... cured, this hazard is reduced or eliminated. Improperly controlled reactions can cause exotherms that result in plant fires. The group of processes defined below are capable of producing parts on open-faced molds, which control the contour of one face of the part. Polyesters and vinyl...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003985
EISBN: 978-1-62708-185-6
... 20% of the tolerance spread allowed for the forgings. When fairly tight draft wall and/or complex contours are features of the forge design, segmented dies with a holder system (described in the article “Forging of Aluminum Alloys” in this Volume) are used to achieve accuracy while maintaining the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003996
EISBN: 978-1-62708-185-6
... provide sufficient economic benefits. Open-die forgings in aluminum alloys can be produced in a wide variety of shapes, ranging from simple rounds, squares, or rectangles to very complex contoured forgings (see the article “Open-Die Forging” in this Volume). In the past, the complexity and tolerances...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
... high-temperature service are rolled in metal as hard as 52 HRC. Some metal products such as gray iron castings and sintered metal pieces cannot be thread rolled because of their low ductility. These materials crumble rather than conform to the contour of the die. All of the commonly used straight and...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001273
EISBN: 978-1-62708-170-2
.... The scouring effect penetrates into crevices, holes, and complex contours that are inaccessible to mechanical action such as brushing. The temperature of the cleaning liquid is important as it affects density and volatility. Aqueous solutions are used at about 50 °C (120 °F) instead of the more...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000606
EISBN: 978-1-62708-181-8
... section of a portion of a gear that was subjected to full-contour flame hardening; note the better tooth form, with fully radiused tooth roots. Both etched in 5% nital. Fig. 211 : actual size. Fig. 212 : 2× Fig. 213 Fracture surface in the jaw end of a blooming-mill spindle of forged AISI 1045...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001232
EISBN: 978-1-62708-170-2
... application categories Abrasive product type Abrasive finishing process category Rough Precision High-precision Bonded abrasives Snagging surfacing cutoff grinding Grinding (surface, creep feed, form, thread, contour, cylindrical, disc, tool, and cutter) Honing, superfinishing, flat honing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003045
EISBN: 978-1-62708-200-6
... flat and without twist Templates: Each should be within tolerance on its contour Reference system: If scribed on the base plate, it should be correct and within tolerance. If an optical reference system is used, it must be verified, and the date of optical equipment calibration must be...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003047
EISBN: 978-1-62708-200-6
... usually do not change the contours of the parts they join. Unlike screws, rivets, or bolts, adhesives give little or no visible external evidence of their presence. Adhesively bonded structures must be carefully designed and used under conditions that do not exceed the operational limitations of the...
Book Chapter

By H.W. Sizek
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003984
EISBN: 978-1-62708-185-6
..., flats, or other axisymmetric bars can also be produced with a radial forge. Coupled with mandrels, tubing and other hollows can also be produced on the radial forge. In part production, radial forging is used to form axial symmetric solids or hollows with complex external and/or internal contours. These...