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stamping
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Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009000
EISBN: 978-1-62708-186-3
... coating, applicable to both mild steel and high-strength steels stampings. The article discusses the behavior of the surface conditions through quantitative measurements and surface analyses conducted throughout the wear tests. The surface conditions include surface roughness, surface morphology...
Abstract
This article describes the laboratory techniques for direct measurement and quantification of die wear in verifying a proprietary die-wear predictor methodology. This method is based on a theoretical formula that can be used to predict the rate of die wear and the life of a die surface coating, applicable to both mild steel and high-strength steels stampings. The article discusses the behavior of the surface conditions through quantitative measurements and surface analyses conducted throughout the wear tests. The surface conditions include surface roughness, surface morphology, microstructure, interfacial friction, surface temperatures, and wear rate.
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0009001
EISBN: 978-1-62708-186-3
... of the die surfaces. In stamping operations of sheet metals for automotive body-in-white (BIW) parts, automotive original equipment manufacturers (OEMs) have been concerned about stamping advanced high-strength steels (AHSS) and ultrahigh-strength steels because extremely high contact pressure and heat...
Abstract
The measurement techniques for die wear can be classified into the following two categories: direct measurements, which are done using lab techniques; and indirect nondestructive measurements, which are done by plant monitoring. This article describes the details of the plant monitoring techniques, along with comprehensive discussions on the measured wear data based on roughness and hardness of die surfaces. It presents a comparison between the predicted and measured die wear rates.
Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003019
EISBN: 978-1-62708-200-6
..., resulting in higher surface quality and less tendency for the occurrence of subsequent defects during painting. Molding and Tooling In the process of loading the material into a compression or stamping tool, the charge of material to be molded is somewhat smaller in length and width but is thicker...
Abstract
The compression molding process is most commonly called the sheet molding compound (SMC) process in reference to the precursor sheet molding compound material it uses. This article discusses the types of materials used for sheet manufacture, and describes the manufacturing and processing parameters of SMC components, providing details on tooling and process advantages and limitations. The article provides a general overview of the types of compression molding processes, including structural compression molding and thermoplastic compression molding.
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Published: 01 January 1990
Fig. 22 CPM 10V punch and copper-beryllium blank used in a progressive stamping operation. Courtesy of Crucible Materials Corporation
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Published: 01 January 2006
Fig. 7 Example of measured strains on a complex stamping. These strains are plotted on the forming limit diagram in Fig. 4 , which was drawn assuming an n -value of 0.24 and a thickness of 0.90 mm (0.035 in.). e ma , major strain; e mi , minor strain. Dimensions given in inches
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Published: 01 January 2006
Fig. 4 Reduction in lead time for simulating the stamping of an automotive panel
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Published: 01 January 2006
Fig. 30 Flow chart of die tryout with stamping computer-aided engineering (CAE) simulation
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Published: 01 January 2006
Fig. 10 Control chart of average thickness ratio t f / t 0 for a stamping, where t f is final thickness, and t 0 is initial thickness. Note the increase in forming severity (reduced thickness ratio) beginning at week 21 and the continuous decrease in thickness ratio beginning at week
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Published: 01 January 2006
Fig. 7 CPM 10V punch and copper-beryllium blank used in a progressive stamping operation. Courtesy of Crucible Materials Corporation
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Published: 01 January 2006
Fig. 44 Heated die system for warm stamping of aluminum alloys. (a) Schematic diagram of warm forming dies. (b) Schematic of formed sheet part. (c) Chrysler Neon door inner panel successfully formed at 350 °C (660 °F) using aluminum 5182 plus manganese sheet
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Published: 01 January 2006
Fig. 16 Hybrid electromagnetic-assisted stamping process used to form hinge faces on aluminum inner door
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in Practical Aspects of Sputtering and Its Role in Industrial Plasma Nitriding
> Surface Engineering
Published: 01 January 1994
Fig. 1 Plasma nitriding of a large stamping die. The bar in the center has anodic polarization. Courtesy of Advanced Heat Treat Corporation
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Published: 30 November 2018
Fig. 18 Heated die system for warm stamping of aluminum alloys. (a) Schematic diagram of warm forming dies. (b) Schematic of formed sheet part. (c) Chrysler Neon door inner panel successfully formed at 350 °C (660 °F) using aluminum alloy 5182 plus manganese sheet. Source: Ref 7
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Published: 01 December 1998
Fig. 57 Two operations that simulate stamping: (a) deep drawing and (b) stretching
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Published: 01 February 2024
Fig. 20 Schematic of hot stamping experimental mockup. Source: Ref 64
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Published: 01 January 2002
Fig. 17 Wiper spring that fractured at a small-radius corner of a stamped bend. (a) Configuration and dimensions (given in inches) of the spring. (b) SEM micrograph showing a forming crack (arrow) in the 135° corner on a new spring. 200×. (c) SEM micrograph showing a crack (arrow
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Published: 01 January 2002
Fig. 14 A quench crack promoted by the presence of a deep, sharp stamp mark in a die made of AISI S7 tool steel. This die had not been tempered, or was ineffectively tempered, after hardening. 2×
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Published: 01 January 2006
Fig. 10 The basic steps in the creation of a stamped sheet metal part for an automobile. The steps shown are those where formability issues must be addressed in one form or another.
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Published: 01 January 2006
Fig. 2 Method for stacking laminations stamped in individual dies
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