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collapsible taps

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Published: 01 January 1989
Fig. 10 Stationary (nonrotating) collapsible tap More
Book Chapter

By Mark Johnson
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002139
EISBN: 978-1-62708-188-7
... Abstract Tapping is a machining process for producing internal threads. This article provides a discussion on machines and accessories of tapping. It reviews the seven categories of taps, namely, solid, shell, sectional, expansion, inserted-chaser, adjustable, and collapsible taps, as well...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002187
EISBN: 978-1-62708-188-7
..., three-flute taps in sizes below 6 mm ( 1 4 in.) have longer life than two-flute taps because less tool surface bears on the threads cut in the casting. For holes 30 mm (1 1 4 in.) in diameter or larger, adjustable or collapsible taps are often used to advantage. Collapsible taps...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
..., and lining push-out device used in induction furnaces are also reviewed. The article concludes with a discussion on batch operation and tap-and-charge operation, two distinct ways of operating a coreless induction furnace. induction furnaces electromagnetic stirring mechanical skimmers silica...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006109
EISBN: 978-1-62708-175-7
... Abstract This article describes the methods for determining the flow rate of metal powders. It examines the factors affecting flow rate, apparent density, and angle of repose of metal powders. The article reviews the frictional properties, cohesive strength, frictional properties, tap density...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002184
EISBN: 978-1-62708-188-7
..., broaching, reaming, tapping, milling, sawing, grinding, honing, and lapping. The article concludes with a discussion on drilling operations in automatic bar and chucking machines and drill presses. aluminum aluminum alloys boring broaching cutting force grinding high-silicon aluminum alloys...
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
... in a straight line. Platens with T-slots or tapped holes are used for mounting the welding dies or electrodes. Rocker-arm machines generally are not used for projection welding because the electrode moves in an arc that can cause slippage between the components as the projection collapses. At the start...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006074
EISBN: 978-1-62708-175-7
... shapes and their influence in determining tap density of the filled mold. It provides a discussion on process parameters, such as dwell time, depressurization rate, evaluation of green strength and density, and thermal processing, and illustrates a process flowchart for the production of CIP parts...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006115
EISBN: 978-1-62708-175-7
... (sieves) are formed in such a way that they stack, one on top of another, to give a snug fit ( Fig. 16 ). Fig. 16 Stacked sieves on a shaker with rotary and tapping action A variety of sieve aperture ranges are currently used, classified as coarse (4 to 100 mm, or 0.16 to 4 in.), medium (0.2...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001076
EISBN: 978-1-62708-162-7
... Zinc Zirconium Alloys Copper Alloys Dental Alloys Cast Irons Titanium Alloys Fusible Alloys Hard Tin (99.6Sn-0.4Cu) Collapsible Tubes and Tin Foil Tin Foil (92Sn-8Zn) Other Alloys Containing Tin Battery Grid Alloys Lead-calcium-tin alloys have been developed...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
... are added to molten metal during or after tapping, rather than being added to the cupola charge. If the ladle that receives the molten metal at the spout will pour the castings without a transfer, the alloying metal may be added to the stream at the spout. This practice generally provides reasonably...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003208
EISBN: 978-1-62708-199-3
... in places that are not readily accessible, and the welded area need not be in view of the operator. Stud welding does not require access to the back of the workpiece. Stud welded fasteners can often replace fasteners normally secured by riveting, drilling, and tapping; manual arc welding; resistance welding...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001751
EISBN: 978-1-62708-178-8
..., in which the ferromagnetic state collapses when T > T c or when T drops below a “freezing” temperature T f . These are best described using magnetic phase diagrams ( Ref 2 ). Two typical examples are shown in Fig. 1(a) and (b) . Fig. 1 Magnetic phase diagrams. (a) Zero field phase...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003145
EISBN: 978-1-62708-199-3
... “Special-Purpose Materials” in this Handbook. Other Tin-Base Alloys Other tin-base alloys include (a) white metal (92Sn-8Sb) used for jewelry, (b) hard tin (99.6Sn-0.4Cu) used for collapsible tubes and foils, and (c) tin foil (92Sn-8Zn) used for food packaging. Other Alloys Containing Tin...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005294
EISBN: 978-1-62708-187-0
... was added at the spout during tapping. Storage and Handling of Charge Components A good material storage and handling system is essential to efficient cupola operations. Metal charge components are unloaded into storage bins using a crane magnet and are transferred to a weigh hopper to designated...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005352
EISBN: 978-1-62708-187-0
... of flow of the molten metal to help prevent the transfer of slag into the molds during pouring. Dams are the projections rising from the bottom of a launder. Weirs are projections coming down into the top of the pour stream. Launders are used in the tapping of blast furnaces (several hundred in 30 min...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004138
EISBN: 978-1-62708-184-9
... and the collapse of a residential swimming pool ladder in another. The consequences of such failures range from merely inconvenient to physically harmful and possibly life threatening. The move from metals to composites in some sports equipment, such as high-end tennis rackets and golf clubs, was motivated...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005244
EISBN: 978-1-62708-187-0
... for easy removal from the castings. Although silicate cores usually collapse sufficiently when used with aluminum and steel, their use in cast iron may be a problem because of a secondary bond that forms at iron-pouring temperatures. Cores for magnesium castings require inhibitors that must be compatible...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005299
EISBN: 978-1-62708-187-0
... the vigorous carbon boil. The boil is stopped by the addition of carbon in the form of a carburizing iron of low sulfur and phosphorus content. Further deoxidizers (ferromanganese and ferrosilicon) are then added to the bath. Next, the metal is tapped into the ladle. A small amount of aluminum is added...