The objective of this study is to find the optimal size of splined shaft in IMS module. Two methods were used in this study. One is for the investigation of effect of indentation process on the tubular shaft yoke, and another is for the investigation of effect of indentation process on splined shaft. The spline outer size of splined shaft was increased from 0.00mm to 0.20mm. The simulation results were analyzed and compared in terms of under-fill, metal flow, effective strain, Von-mises stress and load characteristics. The indentation load was increased with increasing of spline size. However, in case of 0.15mm outer diameter increasing, the separation load was decreased. The case of 0.10mm diameter increasing was the best spline size based on the low indentation load and high separation load.

1. 서 론
 2. 수치 해석적 연구 방법
  2.1 각 제품의 형상 및 물성치
  2.2 수치해석 조건
 3. 결과 및 고찰
  3.1 결육(Under-fill) 특성
  3.2 금속 유동선(Metal flow) 특성
  3.3 유효 변형률(Effective strain) 특성
  3.4 등가 응력(Von-Mises stress) 특성
  3.5 하중(Load) 특성
 4. 결 론
 후 기
 References

• 민세훈(Graduate school of Mechanical Engineering, Kongju National University) | Se-Hun Min
• 염진섭(Division of Mechanical & Automotive Engineering, Kongju National University) | Jin-Seop Yeom
• 서현규(Division of Mechanical & Automotive Engineering, Kongju National University) | Hyun Kyu Suh Corresponding Author