抄録
Need for precise grooving and cutting of ferrite-based composite materials into magnetic heads is increasing recently in the field of electronic industry. As materials for magnetic heads have inherent internal stress, it influences the quality of the head processed by cutting and grooving. This study focuses its attention on the effect of internal stress on its cutting behavior. Indentation and scratching tests were carried out to know the cutting mechanism of the composite ferrite material. it was found that the crack length and chipping area increased with an increase in applied load during scratching. The mode of crack growth and chipping pattern also varied with tensile load. Especially, the chipping area was very sensitive to tensile load under small indentation load.
