Design of intermediate die shape of multistage profile drawing for linear motion guide

Lee, Sang-Kon; Lee, Jae-Eun; Kim, Sung-Min; Kim, Byung-Min

doi:10.1007/s12206-010-0922-2

Cited by 11 publications

(4 citation statements)

References 9 publications

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“…Although pointing is required for every drawing process, most studies on the drawing process have focused on the prediction of and reduction in the drawing load [3][4][5][6][7][8]. Moreover, a number of studies on the shape-drawing process have been carried out predominantly for the die shape design of the drawing process [9][10][11]. Mathan et al researched the pointing process by studying the reduction in a high starting load in cold drawing of circular tubes [12].…”

Section: Four-roll Squeeze Pointing Machine (Rspm)mentioning

confidence: 99%

A Four-Roll Squeeze Pointing Machine for a Shape-Drawing Process

Kim

2018

Metals

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Abstract:A pointing process is a pre-work operation to facilitate the feeding of a rod to pass through a drawing die. After performing the pointing process, the drawing material is inserted into the drawing die and the jaw pulls the end of the material. A bar pointing turning machine, which is universally used for the pointing process, causes a breaking of drawing material easily in the shape-drawing process. Because a shape-drawing process requires a higher drawing load and a smaller cross-sectional area of the pointed zone of drawing material, a pointing process which is to prevent the breaking of the drawing material through a work-hardening effect at an early stage of the drawing process is necessary. In this study, a four-roll squeeze pointing machine (RSPM) as a new automatic pointing machine is introduced. RSPM has been developed to improve the productivity of the pointing process as well as the shape-drawing process by preventing the breaking of the drawing material. The ductile fracture criterion based on Cockcroft-Latham's theory was used to predict the breaking of drawing material and any defects during the pointing process. A tool design method for the RSPM and a feasible pointing size for the conventional pointing machine are proposed. In addition, the drawing materials manufactured using a conventional pointing machine and the RSPM are compared through finite element (FE) simulations and experiments.

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Section: Four-roll Squeeze Pointing Machine (Rspm)mentioning

confidence: 99%

A Four-Roll Squeeze Pointing Machine for a Shape-Drawing Process

Kim

2018

Metals

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“…Norasethasopn et al [8] investigated the influences of inclusion shape and size on the drawing of copper shaped wire by using FE analysis. In 2010, the intermediate die shape of a multi-pass profile drawing process was designed by using electric field analysis [9]. Lee et al [10] studied the manufacturing process of a precision linear guide rail through shape rolling and profile drawing.…”

Section: Introductionmentioning

confidence: 99%

Development of a Multi-Pass Drawing Process Design System for Steel Profiles

Lee

2018

Materials

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The process design of a multi-pass steel profile drawing depends mainly on the experience of the industrial experts. Therefore, in the actual industrial field, a systematic design method is required to improve the efficiency of process design. Development of such a method will result in a reduction in production cost and time. In this study, a process design system that can be installed in AutoCAD V14 was developed. By using the developed design system, the drawing load, stress, and strain, among other parameters, can be calculated. In addition, intermediate die shapes can be designed. After the process design, both process information and drawings of dies can be obtained. In order to verify the effectiveness of the developed process design system, it was used to design multi-pass profile drawing processes. Finally, finite element (FE) analysis and a drawing experiment were carried out to verify the designed processes.

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“…Cold drawing is the most effective method to fabricate aluminium wires with trapezoidal cross section shape. This process provides good surface finishes and excellent dimension accuracy in long products [4]. In multiple-pass trapezoidal wire drawing, it is essential to design the proper intermediate die profile in order to produce a sound product.…”

Section: Introductionmentioning

confidence: 99%

“…There are only a few published reports about the design of profile cold drawing processes. Sang-Kon et al proposed two methods to design the intermediate die shape of a multistage profile drawing for producing a linear motion guide [4]. Sawamiphakdi et al developed a utility programme for a cold drawing process of hollow sections [5].…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of trapezoidal wire cold drawing through a series of shaped dies

Lin

Shen

Sun

et al. 2014

Int J Adv Manuf Technol

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Trapezoidal-shaped aluminium wires are in demand for the production of the aluminium conductor steel supported/trapezoidal wire (ACSS/TW) conductor. In this work, it is proposed to manufacture such wires by a multipass cold drawing process using a series of shaped dies with an initial aluminium wire, which has an outer diameter of 9.5 mm. The ruled surface partition method is introduced to design the intermediate die profile of the multi-pass cold drawing. It is possible to design the intermediate die profile efficiently according to the suggested reduction ratio and save time regardless of the geometric complexity. A multi-pass drawing machine and a universal testing machine are both used to investigate the drawing process of trapezoidal-shaped aluminium wires. Wire break occurs when a five-pass drawing process is introduced. The six-pass drawing process is suggested to apply in a consideration of die cost. The final production has a good surface finish and a dimensional accuracy, suitable for the production of the ACSS/TW conductor. A finite element method (FEM) simulation approach is used to analyse stress and drawing force for the proposed process. The Von Mises stress values gradually increases and the drawing force values decrease along the pass schedule. The influence of the number of the drawing passes is numerically assessed. The drawing force value and the Von Mises stress value are lower when the number of dies is larger. The numerical compute drawing force of the six-pass drawing process is compared with the experimental ones. A good agreement between the predicted and experimental results can be observed.

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Design of intermediate die shape of multistage profile drawing for linear motion guide

Cited by 11 publications

References 9 publications

A Four-Roll Squeeze Pointing Machine for a Shape-Drawing Process

A Four-Roll Squeeze Pointing Machine for a Shape-Drawing Process

Development of a Multi-Pass Drawing Process Design System for Steel Profiles

Numerical and experimental investigation of trapezoidal wire cold drawing through a series of shaped dies

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