Evaluation of J factor and leakage quality for high pressure die casting applied to closed-deck type cylinder block

Youji Yamada, Hiroshi Yoshii, Satoshi Mochizuki, Yuuta Bannai, Jun Yaokawa, Koichi Anzai, Katsunari Oikawa

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The relationship of J factor and internal casting quality in high pressure die casting was investigated by leakage testing conducted after the machining process. The trial die, used for motorcycle engine applications, was a single closed-deck-type liner-less cylinder block with an expendable salt core. The J factor was calculated by using the VanRens equation with varied gate thickness, gate speed, plunger diameter, and casting pressure. To confirm casting quality by leakage testing, we conducted X-ray computerized tomography (XRC), micro-focus XRC, and thermal decomposition gas chromatographic determination analysis. In addition, XRC was used to calculate the total shrinkage volume. A strong correlation was found between the J factor and tightness against pressure leakage.

Original languageEnglish
JournalSAE Technical Papers
DOIs
Publication statusPublished - 2011 Jan 1

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering

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