High-Pressure Fuel Injection Systems: Shot Peening and Its Effect on Residual Stress

Author:  Purdue Materials Engineering
Source:  The Shot Peener magazine, Vol 31, Issue 1, Winter 2017
Doc ID:  2017004
Year of Publication:  2017
Student Researchers: Rachel Butler, Yuheng Du, Heather Macdonald, Kerui Sun Faculty Advisor: John Blendell • Industrial Sponsor: Brian Wright and Andrew Armuth with Cummins Fuel Systems. Cummins Fuel Systems designs and manufactures high-pressure diesel fuel systems that must survive high-cyclic pressures during operation. Shot peening is employed as a surface strengthening technique on pressurebearing surfaces of fuel system components where fatigue failure, due to alternating pressure, is most likely to occur. Cummins Fuel Systems has been a long-standing supporter of Purdue Senior Design Projects and they sponsor a project almost every year. Precision shot peening and the measurement of the resulting properties are topics of special interest to the company. The following is a reprint of the students’ research poster.

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