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electric upsetting

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003980
EISBN: 978-1-62708-185-6
... point along the length of a bar Fig. 21 Electric upsetting operation. (a) The bar, A, is inserted, and clamping jaws, D, are closed. Upsetting cylinder, C, forces the bar against the anvil, B. Electric resistance heats bar section (A). (b) The distance A increases, and the bar thus forms...
Book Chapter

By W.R. Kanne, Jr.
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001367
EISBN: 978-1-62708-173-3
... as an alternative method for supplying the electrical current for upset welding. deformation electrical current homopolar generator resistance welding single-pulse mode upset welding UPSET WELDING (UW) is a resistance welding process utilizing both heat and deformation to form a weld. The heat...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006514
EISBN: 978-1-62708-207-5
... handle brackets, heat exchangers, baffles Cross-wire welding Shelves, racks, cages, automotive grills, electrical connections, fence, screen Upset butt welding Round wire, 13 mm ( 1 2 in.) or less in diameter; solid sections of small cross-sectional area Flash butt welding Round...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005633
EISBN: 978-1-62708-174-0
... and by the application of pressure. In basic terms, it is a melting and a forging process. The pieces to be joined are suitably heated by many electrical arcs at the joining interface until the pieces are sufficiently hot to perform an upset, thereby forging the pieces together. The process is capable of producing...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003207
EISBN: 978-1-62708-199-3
... mechanisms; and the necessary electrical, air, or hydraulic controls. Flash welding machines may be manual, semiautomatic, or fully automatic. With manual operation, the operator controls the speed of the platen from the time flashing is initiated until the upset is completed. In semiautomatic operation...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003207
EISBN: 978-1-62708-199-3
.../forge welding process in which the items to be welded are securely clamped to electric current-carrying dies, heated by the electric current, and upset ( Fig. 9 ). Clamping ensures good electrical contact between the current-carrying dies and the workpiece and prevents the parts from slipping during...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001443
EISBN: 978-1-62708-173-3
..., but it is unique in that the heat for welding is created at the faying surfaces of the joint not only by resistance to the flow of electric current, but also by arcs across the interface. Upset welding (UW) differs from flash welding in that no arc is generated by the process. Capacitor discharge stud welding...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003209
EISBN: 978-1-62708-199-3
... by resistance to the flow of electrical current at the interface of the abutting surfaces to be joined. The deformation results from force on the joint in combination with softening from the electrical resistance heat. Upset welding typically results in solid-state welds (no melting at the joint...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003209
EISBN: 978-1-62708-199-3
... to themselves or to other metals by ultrasonic welding. UPSET WELDING (UW) is a resistance welding process utilizing both heat and deformation to form a weld. The heat is produced by resistance to the flow of electrical current at the interface of the abutting surfaces to be joined. The deformation...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001381
EISBN: 978-1-62708-173-3
... that is used to produce the welds. In direct-drive FRW, both rotational speed and axial force affect axial shortening or upset in addition to the mechanical properties of the weld produced. There can be a correlation between the upset and the quality of the weld. Further, upset in phase 2 increases almost...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005578
EISBN: 978-1-62708-174-0
... of the axial shortening rate (or upset profile) by modulating pressure and/or drive torque. One rotating component One nonrotating component Electric motor and flywheel (for inertia) or electric motor and continuous-drive characteristics (for direct drive) Axial load and hydraulic response...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003992
EISBN: 978-1-62708-185-6
... 2: Die Life in the Upset Forging of Type 304 versus 4340 versus 9310 Example 3: Effect of Forging Severity on Die Life Gas-fired and electric furnaces are used with equal success for heating the stock. Gas-fired furnaces are more widely used, because heating costs are usually lower. The gas...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001378
EISBN: 978-1-62708-173-3
... position after welding Fig. 3 Cold pressure butt welding of two bars using multiple-step upsetting method Fig. 4 Schematic showing servohydraulic, computer-aided cold pressure welding machine consisting of two 250 kN (28 tonf) actuators and two 630 kN (71 tonf) actuators Fig. 5...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001447
EISBN: 978-1-62708-173-3
... of braking mechanism. This is typically a caliper brake(s) system and/or an electric-type brake in the spindle drive motor. In most cases, a third increase in the welding force (usually referred to as the upset force) is applied at the start of or after braking, which consolidates the joint. In contrast...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003184
EISBN: 978-1-62708-199-3
...) Upset and breakdown Finish forging °C °F °C °F Iron-base alloys A-286 S66286 1095 2000 1040 1900 1 Alloy 556 R30556 1175 2150 1175 2150 3 Alloy 800 N08800 1150 2100 1040 1900 1 Nickel-base alloys Astroloy N13017 1120 2050 1120 2050 5 Alloy X...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003978
EISBN: 978-1-62708-185-6
... Fig. 2 Setup for saddle forging a ring Fig. 5 Handling a forging by means of a porter bar and a sling Fig. 4 Cutting and fullering bars Fig. 3 Setup showing use of a ring tool for forming and retaining a tonghold in the workpiece during upsetting Fig. 7 Effect...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... on computer-aided design in the forging industry. Additionally, the article reviews specific characteristics, process limitations, advantages, and disadvantages of the most common forging processes, namely hot upset forging, roll forging, radial forging, rotary forging, isothermal and hot-die forging...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... of metal flow during forging on ductility. (a) Longitudinal and transverse ductility in flat-forged bars. (b) Axial and radial ductility in upset-forged bars Fig. 5 Anisotropy and mechanical properties in forgings. Schematic views of sections from (a) square rolled stock, (b) rectangular rolled...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001820
EISBN: 978-1-62708-180-1
.... This leaves a nonfused portion, thereby reducing the effective wall thickness. These welding processes locally heat the edges of the plate to a suitable forging temperature; the edges are then pushed together, upsetting the wall thickness and forming a bond. In an electric-resistance welded seam, the weld...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005596
EISBN: 978-1-62708-174-0
... ) 0.18 (4.2) Speed Angular velocity, rev/min 5725 Surface velocity, m/min (ft/min) 460 (1500) Total force, kN (lbf) 68.9 (15,500) Approximate upset distance, mm (in.) 3.8 (0.150) Tube-to-tube Outside diameter, mm (in.) 50.8 (2) Inside diameter, mm (in.) 38.1 (1.5) Weld...