The use of electromagnetic field in designing the high quality Al alloys for hot forging process

This work presents a way to obtain the better quality of EN AW 7075 aluminum high-strength alloy by application of electromagnetic field (EMF) during the casting process. In this way, the uniform fine-grained microstructure, and hence the better mechanical properties of the alloy can be achieved. The microstructure and mechanical characterization for samples obtained with and without EMF were performed. The application of numerical simulation for hot forging process, using appropriate software, is efficient and highly useful tool for problem prediction in industrial production, reducing the time and costs in the process of development of new products. The input data of high strength Al-alloy EN AW-7075 is used for simulation because it enables the development of parts with complex dimensions and shape.

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Effect of Thermal Oxidation Coating on the Hot Forging Process of High Strength Ti-6Al-4V Bolt

Transactions of Materials Processing ◽

10.5228/kspp.2009.18.3.251 ◽

2009 ◽

Vol 18 (3) ◽

pp. 251-255

Keyword(s):

Thermal Oxidation ◽

Hot Forging ◽

High Strength ◽

Forging Process ◽

Hot Forging Process

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One-Step Gradual Forging Process by Using Direct Heating Billet within Die

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.764-765.122 ◽

2015 ◽

Vol 764-765 ◽

pp. 122-126

Author(s):

Fang Sung Cheng ◽

Yu Shun Cheng

Keyword(s):

Hot Forging ◽

High Strength ◽

Experimental Result ◽

Forging Process ◽

Direct Heating ◽

Gradual Deformation ◽

One Step ◽

Strength Material ◽

Forging Die ◽

Hot Forging Process

Direct heating billet within a die by using resistance heating method was developed to form the high strength material in one-step gradual forging process. During the forging process, the pressing speed of the upper die is controlled with the pace of the heating billet. In the proposed method, the forging die can be used as both the forming and heating of the billet. Based on this innovative forming method, experimental result shows that the billet could be heated quickly to 1000oC in about 5 seconds and the high strength material was successfully formed to the shape of bolt head in one-step gradual forging process. With the proposed mechanism, the rapidly heating and gradual deformation during the hot forging process can be successfully carried out.

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Direct Heating Billet within Die during Hot Forging Process

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.479-480.25 ◽

2013 ◽

Vol 479-480 ◽

pp. 25-29 ◽

Cited By ~ 1

Author(s):

Fang Sung Cheng ◽

Yu Shun Cheng

Keyword(s):

Hot Forging ◽

High Strength ◽

Heating System ◽

Heating Time ◽

Resistance Heating ◽

Heating Efficiency ◽

Forging Process ◽

Direct Heating ◽

Forging Die ◽

Hot Forging Process

This paper reports a simple and effective method to increase heating efficiency and decrease heating time that renders direct heating billet within die using resistance heating system during hot forging process. The apparatus employs resistance equipment set into the forging die, and the billet was directly resistance heating by the forging die. Base on the approach, the die as a forming condition on direct heating and forging was also researched. The result of experiments shows that the billet could be heated quickly to 1000°C in about 5 seconds and the high strength material (AISI4140) was successfully formed to the shape of bolt head. With this mechanism, the rapidly heating and isothermal deformation during the hot forging process can be achieved.

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