FEM analysis of surface flaw of wire during drawing used in spring of automobile and medical instrument

• Autorzy: Yoshida, K. , Shinohara, T.

Warianty tytułu

PL

Analiza numeryczna metodą elementów skończonych wad powierzchni drutów ciągnionych przeznaczonych na sprężyny w przemyśle motoryzacyjnym i na narzędzia medyczne

• Języki publikacji: EN

Abstrakty

EN

The high surface quality of drawn wire and rods have been required from the field of automobile, machine and medical test. Using three-dimensional FEA, this study analyzed wire breaks that occurred in the drawing fine wires containing inclusion and flaws on the wire surface. The growth and disappearance mechanisms of flaws such as transversal cracks and scratches on a wire surface during wire drawing were investigated.

PL

Od drutów i prętów przeznaczonych do produkcji w przemyśle motoryzacyjnym i medycznym wymagana jest wysoka jakość powierzchni. W pracy przedstawiono trój-osiowy model odkształcenia ciała, analizowano pęknięcia występujące w cienkich drutach zawierających wtrącenia oraz wady powierzchni. Badano wzrost i mechanizm zanikania pęknięć poprzecznych i rys powstających na powierzchni drutu podczas procesu ciągnienia.

Słowa kluczowe

PL

wady powierzchni; sprężyny

EN

surface flaw; springs

• Czasopismo: Hutnik, Wiadomości Hutnicze
• Rocznik: 2005
• Tom: Vol. 72, nr 2
• Strony: 136-139
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Yoshida, K.

• Department of Precision Engineering, School of Engineering Tokai University

autor

Shinohara, T.

• Graduate Student, Graduate School of Engineering, Tokai University

Bibliografia

• 1. Yoshida. K.: Technological trend and problem wire drawing of various super fine wires, J. of the Japan Society for Technology of Plasticity, Vol. 41^170, (2000), pp. 194-198
• 2. Tanaka. H. et al: Analysis of copper wire breaks, FurukawadenkouJihou, Japan, Vol. 59, (1976), pp. 91-98
• 3. Togashi. J. et al., Analysis of copper wire breaks in drawing. FurukawadenkouJihou, Japan, Vol.66, 1979, p. 26
• 4. Chia. E. H. and Jackson. P. M.: Demerit grading system: a description of quality tests for copper rod, Wire J. International December (1978), pp. 56-60
• 5. Yoshida K.: Study on cupper defects in wire drawing, Doctor dissertation at Tokai Univ., Japan, (1982)
• 6. Su. Y. Y.: Analysis of the factors affecting the draw ability of copper rod, Wire J. International, January (1982), pp. 74-79
• 7. Ikeda. T. et al.:-Proceedings of the27thJapaneseConference for Wire Drawing, Japan, (1988)
• 8. Yoshida K. and Tanaka H.: Cup shaped defect in copper wires drawn from rods of continuous casting and rolling, Advanced Technology of Plasticity, Germany, Vol. U, (1987), pp. 857-862
• 9. Raskin C. and Janssen J.: Wire breaks-another view, Wire J. International, December (1998), pp. 80-86
• 10. Meseha G. M. and Garshasb M.: Copper wire failure classification methodology based on rod and wire manufacturing processes, Wire J. International, February (1997), pp. 230-242
• 11. Arashida M. et al.: Opter Review (in Japanese), Japan, Vol. 5, (1994), pp. 8-11
• 12. Tanimoto Y.: Proceedings of the 181sl Japanese seminar for the Technology of Plasticity (in Japanese), Japan, (1998), pp. 67-75
• 13. Avitzur B.: Analysis of central bursting defects in extrusion and wire drawing, Trans. ASME, Ser. B, Vol. 90, (1968), pp. 79-91
• 14. Chen C. C., Oh S. I. and Kobayashi S.: Ductile fracture in axisymmetric extrusion and drawing, Trans. ASME, Ser. B, Vol. 101, (1979), pp. 23-44
• 15. Tanaka H., and Yoshida K.: Relation between oxygen contents and the cupping of tough pitch copper wire, J. of the Japan Institute of Metals, Vol. 43, (1979), pp. 618-625
• 16. Tanaka H., and Yoshida K.: Operational cause of cupping defects in copper wire, J. of the Japan Society for Technology of Plasticity, Vol. 24-270, (1983), pp. 737-743
• 17. Yoshida K.: FEM analysis of wire breaks in drawing of superfine wire with an inclusion, Wire J. International, March (2000), pp. 102-107
• 18. Yoshida K., Ido R., and Yamashita T.: Effects of back tension and drawing direction on wire properties in copper wire drawing, Wire J. International, February (2002), pp. 110—115
• 19. Yoshida K., Imai T.: Analysis of wire breaks during drawing of fine wire with an inclusion by FEM, Simulation Materials processing, A. A. Balkema publishers, pp. 461^-67