1-20 of 147 Search Results for

two-point incremental forming

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
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
... Abstract Rotary swaging is an incremental metalworking process for reducing the cross-sectional area or otherwise changing the shape of bars, tubes, or wires by repeated radial blows with two or more dies. This article discusses the applicability of swaging and metal flow during swaging. It...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004017
EISBN: 978-1-62708-185-6
... deformation into the interior of the extruded part. Note in Fig. 69(a) the two points x and x on the top face of the billet. As extrusion proceeds, these points move closer together and at (d) they are “sucked-in” to both lie on the centerline of the extrusion. Fig. 68 Example of use of finite-element...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004028
EISBN: 978-1-62708-185-6
... the normality or associative rule, stating that the strain rate associated with a given stress on the surface is normal to the SCYS at such point. The surfaces plotted in Fig. 2 are equal-dissipation surfaces and have the latter property. Two surfaces are reported for each crystal: one corresponds...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.9781627081863
EISBN: 978-1-62708-186-3
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004021
EISBN: 978-1-62708-185-6
... of simulation to plasticine deformation, and it was shown that the simulation was very accurate in predicting the material flow ( Ref 22 ). Fig. 43 Two-dimensional flownet of a single tooth in a bevel-gear forming process. The top and bottom dies move together. Fig. 44 Two-dimensional...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009004
EISBN: 978-1-62708-185-6
... a change in shape and dimensions. On close examination, however, it is clear that deformation resulting from the applied load causes secondary stress and strain states that vary from point to point throughout the deforming workpiece. These stress and strain states may include tension, so fracture...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004001
EISBN: 978-1-62708-185-6
... resistance and reduced flow stresses. These improvements are useful in secondary processes such as sheet rolling, superplastic forming of sheet, and isothermal, closed-die forging. Two major techniques for rolling of sheet have evolved from the early work on near-isothermal, hot pack rolling conducted by...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005238
EISBN: 978-1-62708-187-0
... alternative geometries and process conditions in order to minimize the defect. Fig. 5 Finite element meshes of the different domains: part, core, and two half molds Fig. 6 Temperature evolution in the part at different points located in the indicated section Fig. 7 Deformation of...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005950
EISBN: 978-1-62708-166-5
... for almost two decades. Although the industrial usage of heat treatment simulation is still considerably low with respect to application of simulation tools in structural design and forming, there have been considerable improvements during the last decade owing to the promotional activities of...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006788
EISBN: 978-1-62708-295-2
... bisulfite (SBS) injection point, Desulfovibrio ; (4) biofilm after SBS injection, Desulfocapsa ; (5) biofilm at downstream end of treatment plant, Desulfocapsa . Adapted from Ref 22 under the terms of the Creative Commons Attribution License (CC BY). Copyright © 2014 Mand, Park, Jack, and Voordouw...
Series: ASM Handbook
Volume: 22A
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.hb.v22a.a0005456
EISBN: 978-1-62708-196-2
... flow is analyzed using velocity fields (UBM) and the die pressures using balance of forces (SM). They found the two approaches to provide complementary results. The slab method was made popular in the early 1900s by Sachs ( Ref 7 ), Siebel ( Ref 8 ), von Karman ( Ref 9 ), and Orowan ( Ref 10...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005206
EISBN: 978-1-62708-187-0
... equal chemical potential for all components) and the equilibrium compositions of the two phases are given by the tangent points. The line in the phase diagram connecting these two points is called a tie line. The relative position of the Gibbs energy curves varies with temperature and causes the...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004022
EISBN: 978-1-62708-185-6
... the three quarter-point. These five values are compared with each other to find the subinterval where the objective function value is smallest. The J ( t ) values at the two ends of the selected subinterval now serve the same role as J 0 ( t ) and J 1 ( t ) for the next round of bisection. The...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... hydroxide film. Breaks or points of weakness in the protective film allow corrosion to be concentrated in localized areas (during initiation) and at the crack tip (during propagation), which, along with the presence of tensile stress, initiate and propagate SCC. Various aspects of the metal, including...
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
... using open-die forming blanks from a 1500 metric ton (1650 sh ton) hydraulic press would require the use of at least a 2500 metric ton (2750 sh ton) press using container dies to maintain full production on this type of ring. Figure 28 shows schematically the sequence of operations on a two-station...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003995
EISBN: 978-1-62708-185-6
... fine-grained ferrite) These two metallurgical processes of austenite conditioning during hot rolling are briefly described in the next two sections. Restoration takes place as a response to deformation. In effect, plastic deformation leads to an increased crystallographic defect structure...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001324
EISBN: 978-1-62708-170-2
... improve cleaning, it will also result in more burden on the rinse stage and on waste treatment. Titration methods are often used to determine the soap concentration, and incremental additions of concentrated soap are often used to maintain the bath at its concentration set point. Eventually (after 3 to 12...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... organic glasses and brittle polymers but are visible only at the microscale in metallic materials. Source: Ref 9 Fig. 32 (a) Examples of fans in a two-stage transmission electron microscopy replica of a cleavage fracture surface of iron. The river lines point back to the crack initiation site...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005287
EISBN: 978-1-62708-187-0
... in Table 8 . Table 8 Suggested dimensional tolerances for die castings Type A dimension: between two points in same part of die, not affected by parting plane or moving parts Specified dimension, mm (in.) Tolerance, ±, mm (in.) Critical Noncritical Up through 25 (1) 0.10...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003094
EISBN: 978-1-62708-199-3
... point shall be taken as the stress at 0.5% elongation, under load In IF steels, which are also referred to as extra deep drawing quality (EDDQ), the elimination of interstitials (carbon and nitrogen) is accomplished by adding sufficient amounts of carbide/nitride-forming elements (generally...