Premature Failure of a Deburring Drum Initiated by Fatigue at a Stress Concentration Caused by a Sharp Corner at a Bolt Hole
Several deburring drums that fractured were filled with abrasive, water, and small parts, such as roller bearing rollers, and rotated on their axis at 36 rpm. Cracks were discovered very early in the service lives of these high-chromium white iron cast structures. All of the fractures were through bolt holes in the mounting flange. The holes had a sharp edge and exhibited uneven wear on the inside diameter. In operation, the mounting bolts were frequently found to be loose and in at least one case broken off. A 25x scanning electron microscopy (SEM) fractograph from near this fracture-initiation area...
Premature Failure of a Deburring Drum Initiated by Fatigue at a Stress Concentration Caused by a Sharp Corner at a Bolt Hole, ASM Failure Analysis Case Histories: Design Flaws, ASM International, 2019, https://doi.org/10.31399/asm.fach.design.c0047234
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