1-20 of 517 Search Results for

expensive steel dies

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: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005100
EISBN: 978-1-62708-186-3
... process-related developments, namely, superplastic forming of aluminum, forming of tailor-welded blanks, rubber-pad forming, and high-velocity metal forming. The article explains cost-effective approaches of evaluating tooling designs prior to the manufacture of expensive steel dies and dieless forming...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005113
EISBN: 978-1-62708-186-3
... remain flat. Fig. 26 V-die on a press brake Channels can also be formed in a single stroke, which is not only faster but also more accurate. The drawback is that channel-forming dies are single-purpose dies, are relatively expensive, and require at least four times the tonnage of 90┬░ air...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003990
EISBN: 978-1-62708-185-6
.... In addition, as with any forging process, higher working temperatures result in increased die wear. Dies not only wear at a faster rate but also must be fabricated from more durable, more expensive materials. Advantages and Limitations Advantages The primary advantage of rotary forging is in the low...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003997
EISBN: 978-1-62708-185-6
... as that required for low-carbon steel. Forging Products Copper-base forgings exhibit high strength as a result of their fibrous texture, fine grain size, and structure. They can be made to closer tolerances and with finer surface finishes than sand castings, and, while forgings are somewhat more expensive...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005160
EISBN: 978-1-62708-186-3
... whether a progressive die will meet these objectives. Costs The costs involved in the use of progressive dies are frequently a decisive factor in their selection. Progressive dies, due to their complexity, are generally very expensive to build. This expense must be weighed against anticipated...
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
... outweigh high startup and operational costs. Near-net shape processes use hydraulic presses with sophisticated controls to monitor and control strain rates. Tool steel dies are often not capable of processing temperatures for hot-die and isothermal forging, and therefore more expensive superalloys or TZM...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005119
EISBN: 978-1-62708-186-3
... Abstract This article discusses the presses, auxiliary equipment, and dies used in the blanking and piercing of commonly used magnetically soft materials, namely, low-carbon electrical steels and oriented and nonoriented silicon electrical steels. It describes the effect of stock thickness...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003183
EISBN: 978-1-62708-199-3
..., for a 4500 kN (500 tonf) press. Because the impact is less in presses than in hammers, dies can be less massive, thus requiring less tool steel to make the dies. Cast dies can be used. Also because presses deliver a less severe impact blow, dies can be operated at higher hardness, which prolongs die life...
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
... grindability is good and its wear resistance is adequate. More expensive steel such as D2, M1, and M2 are justified for long runs and for work materials that are difficult to roll. A little axial movement occurs between the work and the cylindrical dies, and it is necessary that the threaded length...
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
... velocity at any time, H is the hardness of the die location, and k is a constant dependent on several factors, such as billet material and scale formation. Thermal-Fatigue Thermal-fatigue cracking is a major mode of failure of hot working tool steel dies in forging applications, and it typically...
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
... medals, also reduce die life unless the tonnage can be lowered. Low tonnage requirements often can be achieved by striking softer blanks, provided the blank is not so soft that a fin is extruded on coining. Dies for Decorative Coining Selection of tool steels for fabrication of dies used...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005108
EISBN: 978-1-62708-186-3
... Abstract This article discusses the production of blanks from low-carbon steel sheet and strip in dies in a mechanical or hydraulic press. It describes the cutting operations that are done by dies in presses to produce blanks. The applications of blanking methods are described with examples...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002142
EISBN: 978-1-62708-188-7
... surface finish tangential rolling thread dimension thread rolling through-feed rolling THREAD ROLLING (also known as roll threading) is a cold forming process for producing threads or other helical or annular forms by rolling the impression of hardened steel dies into the surface of a cylindrical...
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
... fatigue, and mechanical fatigue. The article describes heat treating practices commonly employed for chromium- and tungsten-base AISI hot-work tool steels. It discusses the fabrication of impression dies, and the advantages and disadvantages of cast dies. The article concludes with a discussion...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005162
EISBN: 978-1-62708-186-3
... of 0.2 m/s (40 ft/min) is recommended; high punch speeds also shorten tool life. Dies Low-carbon steel can be formed by any of several types of dies. Bending dies include V-dies, wiping dies, U-bending dies, rotary bending dies, cam-actuated flanging dies, wing dies, and compound flanging dies...
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
... machining spindle speed surface cutting speeds FORGING DIES or inserts are machined from solid blocks or forged die steels. By using standard support components such as die holders and guide pins, which ensure the overall functionality of tooling assembly, the time necessary for manufacturing a die...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005140
EISBN: 978-1-62708-186-3
..., nitrided tool steel, or highly alloyed powder metallurgy (P/M) tool steel. In materials selection for large dies, the cost of material is equal to or greater than the cost of machining. In smaller dies, the difference between the cost of the most expensive and the cheapest steels is less important than...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002165
EISBN: 978-1-62708-188-7
... being machined, the use of electrical discharge machining is not affected by the hardness of the work. Materials with poor machinability, such as cemented tungsten carbide and hardened tool steel, can be cut by the EDM process Electrical discharge machining is typically applied to molds and dies...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005158
EISBN: 978-1-62708-186-3
..., especially those made of hardened die steel and tungsten carbide in many forms, such as plastic injection molds, extrusion dies, forging dies, and die casting dies. Traveling-wire EDM differs from conventional (shaped electrode) EDM in that a thin-diameter wire acts as the electrode. Electrical discharge...
Book Chapter

Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005128
EISBN: 978-1-62708-186-3
... material, such as tool steel, for long production runs ( Ref 2 ). Normally, drop hammer forming is accomplished without the benefit of holddown. The metal is slowly forced into shape by controlling the impact of the blows. In many instances, it is necessary to use two- or three-stage dies, supplemental...