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single-cut dies

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Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003975
EISBN: 978-1-62708-185-6
..., in which excess material on an internal surface is removed. To ensure accurate cuts, punching and trimming operations are often performed simultaneously. Selection of materials for trimming and punching dies is based on the type of material to be trimmed and whether the part is to be trimmed while...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
... preforming steps. However, this method is not entirely quantitative and requires subjective evaluation based on past experience. The parting line is the line along the forging at which the dies meet. It can be in a single plane, curved, or irregular. The shape and location of the parting line...
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
... achieve if it were chosen. For example, let us say that there are two competing organizations with the same optimization goal but whose cost structure is different—material costs are lower for one, while labor costs are lower for another. So if both sought to cut cost by x -percent, each would need to...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005807
EISBN: 978-1-62708-165-8
... treatment; flame cutting Insulating action against heating, with resulting underheated areas and soft spots Localized retardation of quench, causing soft spots Rust, dirt (a) Storage and handling of material or parts Similar to scale condition as noted above left Severe rusting may result in...
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
... affecting die life and explains the effect of thread form on processing. It provides information on various fluids used in thread rolling to cool the dies and the work and to improve the finish on the rolled products. The article provides a comparison between thread rolling and cutting, as well as between...
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
... conditions, the tube must have sufficient column strength to permit feeding. Squareness of the cut ends, roundness, and freedom from surface defects also become more critical as the ratio of outside diameter to wall thickness increases. For some applications, it is necessary to reduce...
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
... the stock is reaching the furnace temperature. Cooling from the forging operations should also be considered in terms of grade and size. Austenitic grades are usually quenched from the forge. This is done to minimize the formation of intergranular chromium carbides and to facilitate cutting and...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003976
EISBN: 978-1-62708-185-6
... Abstract This article describes die wear and failure mechanisms, including thermal fatigue, abrasive wear, and plastic deformation. It summarizes the important attributes required for dies and the properties of the various die materials that make them suitable for particular applications...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004041
EISBN: 978-1-62708-185-6
... cutting speeds, and high acceleration and deceleration capabilities. It discusses electrodischarge machining process and electrochemical machining process. The article concludes with information on die-making methods. electrochemical machining electrodischarge machining finishing forging dies...
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
... preparing blanks for hot upset forging. Sawing, cutting with abrasive wheels, and flame cutting are also used, but less frequently. In high-production upsetting where very large numbers of forging are being produced, even the smallest saving of metal on a single forging can result in substantial...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004004
EISBN: 978-1-62708-185-6
... size, machining, descaling, cutting to length, and lubricating. It lists the advantages of the cold heading over machining. Materials selection criteria for dies and punches in cold heading are also described. The article provides examples that demonstrate tolerance capabilities and show dimensional...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004036
EISBN: 978-1-62708-185-6
... relation to the forging operation, flash is of major concern to the forging producer. The trimming of flash and exposure of cut grain may also be of concern to the designer, especially if end-use requirements for the forging stipulate optimum resistance to stress corrosion. Although flash is designed in...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
....) and smaller in diameter are cold drawn from coil stock by various methods. With one method, cold-drawn coils produced on the various machines described previously are straightened and cut into bars in a separate operation on machines designed for that purpose. Some in-line methods and equipment begin...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... cost of dies and cost increases from processing difficulties in forging and trimming. Sharp steps or drops in the parting line should be limited to about 15° from the vertical in small parts and 25° in large forgings, to prevent a tearing instead of a cutting action in trimming off the flash. Locked...
Series: ASM Handbook
Volume: 12
Publisher: ASM International
Published: 01 January 1987
DOI: 10.31399/asm.hb.v12.a0000613
EISBN: 978-1-62708-181-8
... welding system was used to rebuild the worn cutting tools. Inadequate preheating and postweld heat treating resulted in a crack-prone weld-metal microstructure of brittle, untempered martensite. Fig. 748 : As-received end mills with cracked flutes. 0.38×. Fig. 749 : Fracture surface. G is the ground...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004006
EISBN: 978-1-62708-185-6
... save time and energy costs. A puller system and runout table, which may be 30 to 40 m (100 to 130 ft) long, is used to support and guide the product during extrusion. A stretcher is used to straighten the extruded product, and a cutoff saw is used to cut parts to the required length. A handling or...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003178
EISBN: 978-1-62708-199-3
... FORMS are used to give a high strength-to-weight ratio, an open construction (as in fan guards or baskets), shock absorption, and economy of automatic production of formed parts. For small production quantities or large parts, wire is straightened and cut to length as a preliminary operation before the...
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
... temperature quickly, and material is likely to behave differently at elevated temperatures. It plays an important role in metalworking, inertial welding, translational friction welding, and the cutting process. The latent heat comes from the phase transformation or phase change, and eddy-current heat is...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003979
EISBN: 978-1-62708-185-6
... workpiece on all sides. The impression for the forging can be entirely in either die or can be divided between the top and bottom dies. The forging stock, generally round or square bar, is cut to length to provide the volume of metal needed to fill the die cavities, in addition to an allowance for flash...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003987
EISBN: 978-1-62708-185-6
... hubbing. Hubbing is done by cutting the pattern into a male master plug (hub), hardening this hub, and pressing the hardened hub into a die block to make the coining impression. Highly alloyed tool steels are relatively difficult to hub. When coining dies are made from these steels, it may be necessary to...