Forming characteristics of tubular product through the rotary swaging process

Lim, Seong Joo; Choi, Hyun‐Jung; Lee, Chi-Hwan

doi:10.1016/j.jmatprotec.2007.08.086

Cited by 56 publications

(24 citation statements)

References 6 publications

(5 reference statements)

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“…As far as mass production is concerned, metal forming offers the most advantages due to short manufacturing time, low material waste and high strength properties. Metal forming techniques for producing hollow parts include: • spinning [1,2], • standard forging [3,4], • rotary swaging [5,6], • extrusion [7], • rotary compression [8,9], • flanging [10,11], • sequential upsetting [12], • radial extrusion.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve

Winiarski¹,

Gontarz²

2017

Archives of Metallurgy and Materials

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The paper presents a new metal forming process for producing two-step external flanges on hollow parts. With this method, the flange is extruded by a movable sleeve, which moves in the opposite direction to the punch. This reduces the phenomenon of buckling of the tube wall, which allows extruding flanges with relatively large volumes. The new method was applied to produce a two-step flange on the end of a tubular billet made of 6060 aluminum alloy. This cold metal forming process was designed based on numerical simulations and experimental tests. The effect of the basic technological parameters on metal flow was investigated and limitations of the process were identified. The experimental results confirmed the possibility of forming a two-step flange with a diameter that is approximately twice as big as the external diameter of the tubular billet.

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Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve

Winiarski¹,

Gontarz²

2017

Archives of Metallurgy and Materials

View full text Add to dashboard Cite

show abstract

“…They can also be manufactured by upset forging, extrusion or extrusion combined with welding or deep drilling [6][7][8][9]. In recent years, extensive research has been conducted to investigate the rotary compression method for producing hollow parts [10].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of a Skew Rolling Process for Producing a Stepped Hollow Shaft Made of Titanium Alloy Ti6Al4V

Pater

Bulzak

Tomczak

2016

Archives of Metallurgy and Materials

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The paper describes a rolling process for a hollow Ti6Al4V alloy shaft used in driving systems of light trucks. The shaft is formed by skew rolling using three tapered rolls. The principle of this forming process was discussed stressing its universality due to the potential of applying it for forming various products by one set of rolls. The numerical analysis results (product shape progression in rolling, wall thickness distribution, effective strain, temperature and variations in loads and torques) confirm that the proposed technique can be used for producing hollow long shafts.

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“…In order for the mechanical properties of the steering column to be improved, it is quite significant for the rotary swaging process of the steering column to be optimized for forging quality improvement. Lim et al 4 studied the steering column for the driving performance and vibration characteristics to be discussed. Wang et al 5 conducted the torsion failure testing to analyze the location of the strain concentration on the splines of the steering column.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties optimization of the steering column based on multi-objective optimization design

Chen

Wang

Lv³

2016

Advances in Mechanical Engineering

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The mechanical properties of the steering column have a significant influence on the comfort and stability of a vehicle. In order for the mechanical properties to be improved, the rotary swaging process of the steering column is studied in this article. The process parameters, including axial feed rate, hammerhead speed, and hammerhead radial reduction, are systematically analyzed and optimized based on a multi-objective optimization design. The response surface methodology and the genetic algorithm are employed for optimal process parameters to be obtained. The maximum damage value, the maximum forming load, and the equivalent strain difference obtained with the optimal process parameters are, respectively, decreased by 30.09%, 7.44%, and 57.29% compared to the initial results. The comparative results present that the quality of the steering column is improved. The torque experiments and fatigue experiments are conducted with the optimal steering column. The maximum torque is measured to be 260 NM, and the service life is measured to be 2 weeks (40 NM, 2500 times), which are, respectively, increased by 8.3% and 8.69% compared to the initial results. The above results display that the mechanical properties of the steering column are optimized to verify the feasibility of the multi-objective optimization method.

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Forming characteristics of tubular product through the rotary swaging process

Cited by 56 publications

References 6 publications

Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve

Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve

Numerical Analysis of a Skew Rolling Process for Producing a Stepped Hollow Shaft Made of Titanium Alloy Ti6Al4V

Mechanical properties optimization of the steering column based on multi-objective optimization design

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