Extrusion Benchmark 2009 Experimental Analysis of Deflection in Extrusion Dies

2009 ◽  
Vol 424 ◽  
pp. 19-26 ◽  
Author(s):  
Daniel Pietzka ◽  
Nooman Ben Khalifa ◽  
Lorenzo Donati ◽  
Luca Tomesani ◽  
A. Erman Tekkaya
Keyword(s):  
Temperature Distribution ◽  
Tool Steel ◽  
Experimental Analysis ◽  
Extrusion Process ◽  
Statistical Distribution ◽  
Experimental Investigations ◽  
Aluminum Extrusion ◽  
Extrusion Dies ◽  
Hot Work Tool Steel ◽  
Die Material

In this paper experimental investigations aimed at measuring the die deformations during aluminum extrusion process is presented and discussed. A two-holes die generating two U-shape profiles with different supporting legs was produced and tested under strictly monitored conditions. The influence of die deformation on the speed, temperature distribution and distortion of the two profiles is reported and analyzed. AA6082 alloy was used as deforming material while H-13 hot-work tool steel was selected as die material. The experiments were repeated at least three times in the same conditions in order to achieve a statistical distribution of the acquired data: such data are then used as a reference for the 2009 edition of the extrusion benchmark.

Extrusion Benchmark 2013 - Experimental Analysis of Mandrel Deflection, Local Temperature and Pressure in Extrusion Dies

2013 ◽  
Vol 585 ◽  
pp. 13-22 ◽  
Author(s):  
Alessandro Selvaggio ◽  
Thomas Kloppenborg ◽  
Martin Schwane ◽  
Ramona Hölker ◽  
Andreas Jäger ◽  
...  
Keyword(s):  
Extrusion Process ◽  
Experimental Investigations ◽  
Measurement Equipment ◽  
Aluminum Extrusion ◽  
Extrusion Speed ◽  
Statistical Validation ◽  
Extrusion Dies ◽  
Special Measurement ◽  
Die Temperature ◽  
Temperature And Pressure

A bridge die was designed for the simultaneous extrusion of two rectangular profiles and used in a strictly monitored aluminum extrusion process. Experimental investigations aimed at the measurement of the mandrel deflection, the local die temperature, and the pressure inside the welding chamber by means of special measurement equipment. AA6082 alloy was used as extrusion material. The influence of the extrusion speed on the aforementioned objectives is reported. The experiments were repeated at least three times under the same conditions in order to achieve a statistical validation of the acquired data. These data are provided as reference for the 2013 edition of the Extrusion Benchmark.

Increased Productivity in Hot Aluminum Extrusion by Using Extrusion Dies with Inner Cooling Channels Manufactured by Rapid Tooling

2014 ◽  
Vol 611-612 ◽  
pp. 981-988 ◽  
Author(s):  
Ramona Hölker ◽  
Matthias Haase ◽  
Nooman Ben Khalifa ◽  
A. Erman Tekkaya
Keyword(s):  
Surface Defects ◽  
Experimental Investigations ◽  
Extrusion Force ◽  
Aluminum Extrusion ◽  
Thermally Induced ◽  
Manufacturing Method ◽  
Cooling Channels ◽  
Extrusion Dies ◽  
Exit Temperature ◽  
Tooling Technology

The influence of local inner die cooling on the heat balance in hot aluminum extrusion was investigated. For the manufacturing of the die with cooling channels close to the forming zone, the layer-laminated manufacturing method was applied. The new tooling technology was applied in order to decrease the profiles exit temperature and to avoid thermally induced surface defects with the aim to raise the productivity in hot aluminum extrusion processes. Numerical and experimental investigations revealed that, while maintaining the exit temperature of the extrudate, a distinct increase of the production speed up to 300% can be realized, while the extrusion force increases only slightly. An effect on the profiles microstructure was also detected. By applying die cooling, grain coarsening can be significantly limited or even be avoided.

HALCOMB 425

Alloy Digest ◽  
1969 ◽  
Vol 18 (9) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Extrusion Dies ◽  
Temperature Performance ◽  
Hot Work Tool Steel ◽  
Crucible Steel

Abstract HALCOMB 425 is a hot work tool steel having excellent resistance to shock and abrasion at elevated temperatures. It is recommended for brass and copper extrusion dies, forging dies and inserts, and hot punches. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-223. Producer or source: Crucible Steel Division, Colt Industries.

CANNON-MUSKEGON H19

Alloy Digest ◽  
1972 ◽  
Vol 21 (6) ◽  
Keyword(s):  
Physical Properties ◽  
Tool Steel ◽  
Elevated Temperatures ◽  
Heat Treating ◽  
Hot Work Tool Steel ◽  
Hot Hardness

Abstract CANNON-MUSKEGON H-19 is an air-hardening, tough, hot-work tool steel that has excellent resistance to shock and abrasion at elevated temperatures while maintaining good hot hardness. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on casting, heat treating, machining, and joining. Filing Code: TS-244. Producer or source: Cannon-Muskegon Corporation.

UNS T30407

Alloy Digest ◽  
1985 ◽  
Vol 34 (4) ◽  
Keyword(s):  
Tool Steel ◽  
Vanadium Carbide ◽  
Cold Work ◽  
Heat Treating ◽  
Cold Extrusion ◽  
High Carbon ◽  
Extrusion Dies ◽  
Steel Mills ◽  
Aisi Type ◽  
Cold Work Tool Steel

Abstract UNS No. T30407 is a high-carbon chromium cold-work tool steel containing vanadium (4.0%) and molybdenum (1.0%). Its carbon and vanadium form a vanadium carbide that provides war resistance many times greater than that of UNS No. T30403 (AISI Type D3). UNS No. T30407 was developed for applications where extreme abrasive wear is needed. Its many applications include briquetting dies and punches, brick mold liners, pottery, tools, broaches, meat-chopper plates and cold-extrusion dies. This datasheet provides information on composition, physical properties, hardness, and elasticity. It also includes information on forming, heat treating, and machining. Filing Code: TS-439. Producer or source: Tool steel mills.

CARPENTER No. 882

Alloy Digest ◽  
1978 ◽  
Vol 27 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
High Temperature ◽  
Physical Properties ◽  
Tensile Properties ◽  
Tool Steel ◽  
Cold Work ◽  
Heat Treating ◽  
Temperature Performance ◽  
Hot Work Tool Steel ◽  
Red Hardness

Abstract CARPENTER No. 882 is a 5% chromium hot-work tool steel designed particularly for applications requiring extreme toughness combined with good red hardness. It also has found cold-work applications. It can be used at strength levels in excess of 260,000 psi (18,300 kg/cm2). This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on high temperature performance as well as forming, heat treating, machining, and joining. Filing Code: TS-339. Producer or source: Carpenter.

LSS H21

Alloy Digest ◽  
2013 ◽  
Vol 62 (1) ◽  
Keyword(s):  
Fracture Toughness ◽  
Physical Properties ◽  
Tool Steel ◽  
Heat Treating ◽  
Steel Company ◽  
Hot Work Tool Steel ◽  
Specialty Steel

Abstract LSS H21 is a hot work tool steel recommended for difficult hot work tooling applications. This datasheet provides information on composition, physical properties, hardness, and elasticity as well as fracture toughness. It also includes information on heat treating and machining. Filing Code: TS-713. Producer or source: Latrobe Specialty Steel Company.

THYROTHERM 2885

Alloy Digest ◽  
2008 ◽  
Vol 57 (3) ◽  
Keyword(s):  
Heavy Metals ◽  
High Temperature ◽  
Physical Properties ◽  
Tool Steel ◽  
Heat Treating ◽  
Temperature Performance ◽  
Hot Work Tool Steel

Abstract Thyrotherm 2885 is a hot-work tool steel used mainly as extrusion tooling for heavy metals. This datasheet provides information on composition, physical properties, and hardness as well as creep. It also includes information on high temperature performance as well as forming and heat treating. Filing Code: TS-662. Producer or source: Schmolz + Bickenbach USA Inc.

LSS H10

Alloy Digest ◽  
2008 ◽  
Vol 57 (9) ◽  
Keyword(s):  
Wear Resistance ◽  
Physical Properties ◽  
Tool Steel ◽  
Thermal Fatigue ◽  
Heat Treating ◽  
Steel Company ◽  
Hot Work Tool Steel ◽  
Specialty Steel

Abstract LSS H10 is a hot-work tool steel with resistance to temperature softening and thermal fatigue. This datasheet provides information on composition, physical properties, and elasticity. It also includes information on wear resistance as well as heat treating and machining. Filing Code: TS-672. Producer or source: Latrobe Specialty Steel Company.

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