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die wear

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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.a0004035
EISBN: 978-1-62708-185-6
... closed-die forgings, including finish allowances for machining, length and width tolerances, die-wear tolerance, match tolerances, die-closure or thickness tolerances, straightness and flatness tolerances, radii tolerances, flash-extension tolerances, and surface tolerances. It also contains a convenient...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005677
EISBN: 978-1-62708-198-6
... ( Table 1 ). Porcelain has excellent aesthetic properties and resists wear extremely well. Some representative properties are reported in Table 2 . The most common die material is calcium sulfate dihydrate (gypsum), but dies may be fabricated from epoxy resin or electroplated with silver or...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... Abstract Friction and wear are important when considering the operation and efficiency of components and mechanical systems. Among the different types and mechanisms of wear, adhesive wear is very serious. Adhesion results in a high coefficient of friction as well as in serious damage to the...
Book Chapter

Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006790
EISBN: 978-1-62708-295-2
... parts being drawn is essential to reduce friction, wear, and galling. In actual practice, die materials are selected after trials employing the production lubricants. If excessive wear or galling occurs, a better lubricant is usually applied. For extremely difficult draws, the best lubricants are...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005186
EISBN: 978-1-62708-187-0
... internal and external contours independently to almost any requirement Place metal in exact locations where it is needed for rigidity, wear, corrosion, or maximum endurance under dynamic stress Produce a complex part as a single, dependable unit Readily achieve an attractive appearance This...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005292
EISBN: 978-1-62708-187-0
... Abstract High-pressure die casting is a fast method for net shape manufacturing of parts from nonferrous alloys. This article reviews the automation technologies for the different stages or steps of the process. The steps include liquid metal pouring, injection, solidification, die open, part...
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
... Abstract This article addresses dies and die materials used for hot forging in vertical presses, hammers, and horizontal forging machines (upsetters). It reviews the properties of die materials for hot forging, including good hardenability, resistance to wear, plastic deformation, thermal...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003097
EISBN: 978-1-62708-199-3
... mismatch, die wear, and length, should be added to allowance for machining plus machined dimensions. On the average, tolerances listed in Tables 3 and 4 conform to the full process tolerances of actual production parts and yield more than 99% acceptance of any dimension specified from this table. In...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005318
EISBN: 978-1-62708-187-0
... considerations, including properties of the material being cast, capacity and operating parameters of the casting machines being used, and economics of post processing that are considered along with the functional requirements. die casting tooling materials selection failure modes wear die casting dies...
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
... is die forged in a blocker cavity before finish forging. The primary objective of preforming is to distribute the metal in the preform in order to: Ensure defect-free metal flow and adequate die filling Minimize the amount of material lost into flash Minimize die wear in the finish...
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 (ECM) is similar to EDM but does not use sparks for material removal. Only direct current between the metal electrode and the die steel is used for material removal. This method is more efficient than EDM in terms of metal removal rate; however, electrode wear is also quite large and, more...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005268
EISBN: 978-1-62708-187-0
... and the tool to wear prematurely. The design of the machine is robust to provide the needed rigidity. To open and close the die straight: The machine must also provide the correct amount of clamping force to seal the die parting line, operate core slides and locks, and hold the die closed against...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005267
EISBN: 978-1-62708-187-0
... nitriding for better resistance to heat checking and spalling. Lubricating the slides and cores with molybdenum disulfide or colloidal graphite helps to ensure smooth action and minimize wear. With hot chamber die casting of zinc alloys, the surface life of the die casting die is normally much longer than...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0009005
EISBN: 978-1-62708-185-6
... in reference to the determination of flow stresses and total working loads in metal-forming practice (which thus determines equipment utilization factors such as required press capacity, die materials and die wear, and certain other die-design features). Such topics are summarized in other articles...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003996
EISBN: 978-1-62708-185-6
..., and pistons. Upset forging may be the sole process used for the shape, as is the case with pistons, or it can be used as a preliminary operation to reduce the number of impressions, to reduce die wear, or to save metal when the products are finished in closed-dies. Wheel and gear forgings are typical...
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
... pressure, a commercial deep-drawing compound is sometimes used. Coining dies may fail by wear, deformation due to compression, or cracking. With low coining pressures and soft work metal, wear failures predominate. With some combinations of die metal and work metal, dies may fail by adhesion (wear caused...
Book Chapter

Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005307
EISBN: 978-1-62708-187-0
... points, which can be a primary cause of wear and jamming in the conventional hinged steel belt. The overlapping belt is designed to use standard belt components and can be used in conventional hinged steel belt frames. In the zinc foundry and die casting alloys containing aluminum, nonmetallic oxide...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005333
EISBN: 978-1-62708-187-0
... greater strength, hardness, wear resistance, ductility, flexibility, or some other property not possessed, at least in the same degree, by the die casting alloy To provide shapes of parts or passages that cannot be cored or cast or are less expensive or better as inserts Inserts can usually be...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003061
EISBN: 978-1-62708-200-6
... Abstract Structural applications for advanced ceramics include mineral processing equipment, machine tools, wear components, heat exchangers, automotive products, aerospace components, and medical products. This article begins with an overview of the wear-resistant applications and the...