Development of Friction-Assisted Extrusion Process for Producing Thin Metal Strips
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概要
- 論文の詳細を見る
A new concept of "friction-assisted extrusion" to produce a thin metal strip was proposed. In this process, a rectangular prismatic workpiece inserted into the container is compressed by a punch against an anvil, and the anvil is forced to move horizontally. A thin strip can be extruded through the gap by exerting a high friction force over the anvil surface. Very thin strips of aliminum up to about 15μm in thickness could be formed up to the extrusion ratio R-667 with a considerably low punch pressure ratio p/2k=1〜2 (P : punch pressure, k : yield shear stress), which agreed with the theoretical value estimated by the upper bound approach analysis. The friction-assisted extrusion process was applied to a forming of thin strips from aluminum powder. The thin strips formed from the aluminum powder have superior mechanical properties to those formed from bulk aluminum materials.
- 一般社団法人日本機械学会の論文
- 1995-03-15
著者
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Nakamura Tamotsu
Faculty Of Engineering Nagoya University.
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Imaizumi Haruki
Faculty Of Engineering Shizuoka University
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Hiraiwa Masashi
Faculty Of Engineering Shizuoka University
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Tomizawa Yasuji
Maruyasu Indutries Co. Ltd.
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Nakamura Tamotsu
Faculty Of Engineering Nagoya University
関連論文
- Investigation into Deep Drawing of Clad Sheet Metals : 2nd Report, On the Optimum Combination Conditions of the Composing Sheets
- The Basic Rules on the Fracture in Sheet Metal Drawing
- Fatigue Gauge Utilizing Slip Deformation of Aluminum Foil : Slip Initiation and Surface Roughening Phenomena under Uniaxial Stressing
- Deformation and Strength of Metal over Punch in Sheet Metal Drawing : 1st Report, General Features of the Fracture Behaviour
- The Frictional Mechanism of Surface of Metals Plastically Deformed : 1st Report, Examination by means of the Sheet Metal Drawing-type Friction Testing Machine
- Frictional Characteristics of Mineral Oils in Sheet Metal Drawing : 2nd Report, Effects of Additives and Metal
- The Basic Rules on the Fracture in Sheet Metal Drawing
- The Frictional Mechanism on Surface of Metals Plastically Deformed : 3rd Report, Effects of the Bulk Plastic Deformation on the Frictional Shear Stress
- Seizure Initiation Mechanism in Cold Metalworking Processes (3rd Report, Effect of Oil Film Thickness on Seizure Initiation) : Series C : Vibration, Control Engineering, Engineering for Industry
- Seizure Initiation Mechanism in Cold Metalworking Processes (2nd Report, Estimation of Oil Film Thickness in Extrusion Type Friction Test) : Series C : Vibration, Control Engineering, Engineering for Industry
- Research on Pressure Welding Conditions of Various Work Metals : Effects of Contact Pressure, Surface Expansion Ratio and Temperature
- Smoothing Conditions of Workmetal Surface in Metalworking Processes : Effects of Contact Pressure and Relative Slip Displacement
- A Seizure Initiation Mechanism in Cold Metalworking Processes : Effect of Tool Surface Roughness on the Critical Oil Film Thickness
- Development of Friction-Assisted Extrusion Process for Producing Thin Metal Strips
- Investigations on Peen Forming : 1st Report, On the basic features of this process
- On the Characteristics of Square Cup Drawing
- Investigation into Deep Drawing of Clad Sheet Metals : 1st Report, On the Interaction of Each Composing Sheet During Deformation
- Investigaion into a New Forming Process for a Hollow Article with Flange and Its Application : (1st Report, On the Basic Features of the Process)
- Investigation into Deep Drawing of the Square Cup by Cladding
- Surface Roughening Mechanism of Polycrystalline Metal Sheet during Plastic Deformation : Effect of Strain Path on Surface Topography
- On the Assessment of Lubricity in the Deformation Process by a Strip-ironing Type Friction Testing Machine : Fundamental Considerations and Measurements of Anti-weldability
- The Frictional Mechanism on Surface of Metals Plastically Deformed : 2nd Report, Design and Calibration of Drawing-type Friction Testing Machine and Some Preliminary Experiments
- Research on Extrusion Process with Effective Stick Friction : 1st Report, Theoretical Analysis on Forming Thin-Wall Cup : Series C : Vibration Control Engineering Engineering for Industry
- Research on Extrusion Process with Effective Stick Friction : 2nd Report, Experimental Investigation on Forming of Cylindrical Thin-Wall Cup : Series C : Vibration Control Engineering Engineering for Industry