Technology
Award Winning Technology and Services
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Technology Shift from Casting to Forging
Forging is Stronger than Casting
The University of Toledo Industrial & Manufacturing Engineering Department published an excellent research paper on forging vs casting crankshafts, proving the following results:
- Forged parts had a 26% higher tensile strength than the cast parts. This means you can have stronger crankshafts at a lower part weight.
- Forged parts have a 37% higher fatigue strength resulting in a factor of six longer fatigue life. This means that a forged crankshaft is going to last longer.
- Cast iron only has 66% of the yield strength of forged steel. Yield strength is an indicator of what load a crankshaft will hold before starting to deform.
- The forged parts had a 58% reduction in area when pulled to failure. The cast parts only had a 6% reduction in area. That means there would be much greater deformation before failure in a forged part.
The title of the research paper is “Fatigue Performance Comparison and Life Predictions of Forged Steel & Ductile Cast Iron Crankshafts” written by Jonathan Williams, Farzin Montazersadgh, and Ali Fatemi, Graduate Assistants and Professor, respectively, Mechanical, Industrial & Manufacturing Engineering Department, The University Of Toledo – Toledo, Ohio.
Forging Innovation
Our state-of-the-art high speed forging line can forge crankshafts every 9 seconds with fully automated operation.
Forging Innovation
Line 4: 5000T High Speed Press (2015 Sumitomo Heavy Industries)
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- General Motors BIQS