Development of Micro Punching System

Joo, Byung-Yun; Oh, Sang-Ho; Jeon, Byung-Hee

doi:10.1016/s0007-8506(07)62102-7

Cited by 45 publications

(14 citation statements)

References 5 publications

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“…To avoid the misalignment of the punch and die, Broomfield et al (2009) suggested the use of the die set. Similarly, Joo et al (2001) designed a stripper that may guide the punch tip to minimise the possible of misalignment. Bhuvanesh and Ratnam (2007) developed a vision system that may detect any defect of the stamped part because of misalignment.…”

Section: Misalignmentmentioning

confidence: 99%

Die-punch alignment and its effect on the thinning pattern in the square-shaped deep drawing of aluminium alloy

Vairavan

Abdullah

2017

IJMPT

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This study investigates the pattern of thinning in the square-shaped deep drawing of aluminium alloy by focusing on the die-punch alignment. The thickness measurements of the drawn blank are obtained by analysing the images obtained from the Alicona Infinite System, a commercial 3D non-contact surface measurement system. The thinning pattern is then mapped on the basis of the measurements made on a few locations along the drawn blank cross-sectional profile. Results show that misalignments may cause unbalanced thickness, thus leading to the premature failure of the blank. Furthermore, misalignments also increase the load required for the drawing process.

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Section: Misalignmentmentioning

confidence: 99%

Die-punch alignment and its effect on the thinning pattern in the square-shaped deep drawing of aluminium alloy

Vairavan

Abdullah

2017

IJMPT

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“…In addition, punching of a hole-based pattern is a challenging issue since it is prone to having punch-die misalignment [70]. Making precision tooling to overcome these difficulties is costly, if not impossible.…”

Section: Flexible Toolingmentioning

confidence: 99%

Microforming Processes

Chan

2014

Springer Series in Advanced Manufacturing

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“…마이크로 엠보싱 [5,6], 마이 크로 펀칭 [7] 등의 공정에 대한 연구가 진행되었다. 금속성형 공정 중에서 마이크로 롤-롤 성형 공정은 높은 생산성으로 인해 PDP 격벽구조, 솔라셀 집전 판, 기판회로 설계 등의 넓은 범위에서 활용이 검토 되고 있다.…”

Section: 서 론unclassified

Design of Roll-to-Roll Forming Process for Micro Pattern on the Thin Sheet Metal by Finite Element Analysis

Cha¹,

Shin²,

Lee³

et al. 2010

Transactions of Materials Processing

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Roll-to-roll forming process is one of important metal processing technology because the process is simple and economical. These days, with these merits, roll-to-roll forming process is tried to be employed in manufacturing the circuit board, barrier ribs and solar cell plate. However, it is difficult to apply to the forming of micro scale or sub-micro scale pattern. In this study, the roll forming processing for the micro scale is designed and analyzed. The forming of micro pattern for small electric device such as LCD panel by incremental roll forming process is analyzed. Firstly, the optimum analysis conditions are found by several analyses. And then, formability is analyzed for various protrusion shapes at various forming temperatures. The formability is evaluated in terms of filling ratio and damage value. The filling ratio is defined from the tool geometry and critical damage is determined from the analysis of uniaxial tensile test. Finally, optimum forming conditions that guarantee the successful forming are found.

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Development of Micro Punching System

Cited by 45 publications

References 5 publications

Die-punch alignment and its effect on the thinning pattern in the square-shaped deep drawing of aluminium alloy

Die-punch alignment and its effect on the thinning pattern in the square-shaped deep drawing of aluminium alloy

Microforming Processes

Design of Roll-to-Roll Forming Process for Micro Pattern on the Thin Sheet Metal by Finite Element Analysis

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