Topographic Characterization of Progressive Wear on Deep Drawing Dies

1997 ◽  
Vol 40 (2) ◽  
pp. 346-352 ◽  
Author(s):  
S. Christiansen ◽  
L. De Chiffre
Keyword(s):  
Deep Drawing ◽  
Drawing Dies

A CAD/CAM system for deep drawing dies in a simple-action press

1999 ◽  
Vol 87 (1-3) ◽  
pp. 258-265 ◽  
Author(s):  
S.B Park ◽  
Y Choi ◽  
B.M Kim ◽  
J.C Choi
Keyword(s):  
Deep Drawing ◽  
Cad Cam ◽  
Simple Action ◽  
Drawing Dies

TRUWEAR

Alloy Digest ◽  
1969 ◽  
Vol 18 (3) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Resistance ◽  
Deep Drawing ◽  
Cold Work ◽  
Heat Treating ◽  
High Carbon ◽  
Steel Company ◽  
High Chromium ◽  
Drawing Dies ◽  
Cold Work Tool Steel

Abstract Truwear is a high-carbon high-chromium cold work tool steel having extremely high resistance to abrasion and wear. It is recommended for deep drawing dies, brick mold liners, valve seats, master gages, etc. This datasheet provides information on composition and hardness as well as fracture toughness. It also includes information on forming, heat treating, machining, and joining. Filing Code: TS-215. Producer or source: Jessop Steel Company.

Fabrication and Applications of Ultra-Smooth Composite Diamond Coated WC-Co Drawing Dies

2011 ◽  
Vol 175 ◽  
pp. 233-238 ◽  
Author(s):  
Bin Shen ◽  
Fang Hong Sun ◽  
Zhi Ming Zhang ◽  
He Sheng Shen ◽  
Song Shou Guo
Keyword(s):  
Chemical Vapor ◽  
X Ray Diffraction ◽  
Entry Zone ◽  
X Ray ◽  
Nano Crystalline ◽  
Composite Diamond ◽  
And Performance ◽  
Hot Filament ◽  
Drawing Dies

Micro/nano-crystalline multilayered ultra-smooth diamond (USCD) films are deposited on the interior-hole surface of conventional WC-Co drawing dies with a combined process consisting of the hot filament chemical vapor deposition (HFCVD) method and polishing technique. Scanning electron microscopy (SEM), surface profilemeter, Raman spectroscopy and X-ray diffraction (XRD) are employed to provide a characterization of as-deposited USCD films. The results exhibit that as-deposited USCD films present an ultra-smooth surface, its surface roughness values (Ra) in the entry zone, drawing zone and bearing zone are measured as 25.7 nm, 23.3 nm and 25.5 nm respectively. Furthermore, the working lifetime and performance of as-fabricated USCD coated drawing dies are examined in producing copper tubes with hollow sinking, fixed plug and floating plug. The results show that the lifetime of USCD coated drawing is as more than 30 times as that of WC-Co drawing dies in the drawing process with hollow sinking, 7 times in the fixed plug drawing and 10 times in the floating drawing.

Effect of Geometries of Die/Blank Holder and Punch Radii in Angular Deep-Drawing Dies on DP Steel Formability

2015 ◽  
Vol 813-814 ◽  
pp. 269-273 ◽  
Author(s):  
P. Venkateshwar Reddy ◽  
S. Hari Prasad ◽  
Perumalla Janaki Ramulu ◽  
Sirish Battacharya ◽  
Daya Sindhu Guptha
Keyword(s):  
Deep Drawing ◽  
Thickness Distribution ◽  
Frictional Coefficient ◽  
Drawing Ratio ◽  
Drawing Process ◽  
Dp Steel ◽  
Punch Force ◽  
Blank Holder ◽  
Deep Drawing Process ◽  
Drawing Dies

In recent days deep-drawing is one of the most important methods used for sheet metal forming. The geometries of die/blank holder and punch are one of the parameters for deep-drawing. This paper presents an attempt to determine the effect of different geometries of die/blank holder, punch radii and blank holding force on deep drawing process for the formability of DP Steel of 1mm sheet. The numerical simulations are performed for deep drawing of cylindrical cups at a constant frictional coefficient of 0.12 and different blank holding forces of 10, 15 and 20kN are used. For numerical simulation PAM STAMP 2G a commercial FEM code in which Hollomon’s power law and Hills 1948 yield’s criterion is used. The die/blank holder profile used with an angles of α=0°, 12.5°, 15° and die/punch profile with a radii of R= 6 and 8mm were simulated to determine the influence of punch force and thickness distribution on the limit drawing ratio. The aim of this study is to investigate the effect of tool geometries on drawability of the deep-drawing process.

A CAPP/CAD for Sheet Metal Deep Drawing

2014 ◽  
Vol 619 ◽  
pp. 105-109
Author(s):  
R.K. Abdel-Magied ◽  
H.M.A. Hussein
Keyword(s):  
Sheet Metal ◽  
Deep Drawing ◽  
Computer Aided Design ◽  
Basic Program ◽  
Integrated System ◽  
Computer Aided Process Planning ◽  
Drawing Die ◽  
Computer Aided ◽  
Aided Design ◽  
Drawing Dies

The aim of this work is to develop an integrated system for facilitating the process of designing the drawing dies and their component. The developed system is based on the integration between Computer Aided Process Planning in Sheet Metal Drawn parts “CAPP”, and the Computer Aided Design in Deep Drawing Die components “CAD”. Both modules are coded using Visual Basic program and joined with AutoCAD. The CAPP module made to report the drawing load and to plot the shape of the drawn shell in each stage of the Axis-Symmetric Deep Drawing process. Based on the reported shell geometry, the dimensions of the die components are calculated and transferred to the CAD module. The CAD module, which is based on many data bases (standard parts, sheet metal data), plots the required deep drawing die components for each drawn stage on the AutoCAD monitor. A demonstrated example is presented to validate the developed system and to show that the system results are acceptable.

A New Apparatus for Estimating Die Profile Friction in Deep Drawing

1994 ◽  
Vol 116 (2) ◽  
pp. 183-188 ◽  
Author(s):  
S. Tsutsumi ◽  
T. Kato
Keyword(s):  
Frictional Force ◽  
Deep Drawing ◽  
Metal Forming ◽  
Workpiece Material ◽  
Absolute Value ◽  
Sintered Carbide ◽  
Die Profile ◽  
New Apparatus ◽  
The Absolute

A new deep-drawing apparatus is developed for examining the compatibility problem between the tool and the workpiece material in metal forming. The die consists of two parts divided coaxially, the radius part rotating at a desired speed and the flange part fixed. The division of the die makes it possible to control the meridian component of the frictional force on the die profile radius by changing the direction of frictional force with its rotation. The characterization of the apparatus is made by drawing tests of copper blanks with a sintered carbide die. The result shows that it is possible to estimate the absolute value of die profile friction in deep drawing by using the apparatus developed.

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