1 Subjects: “...tool wear...”

2 Subjects: “...electrode wear...”

3 Subjects: “...electrode wear...”

4 Subjects: “...tool wear...”

5 Subjects: “...tool wear...”

6 Subjects: “...oil pump wear...”

7 Subjects: “...degree of wear...”

8 Subjects: “...wear behavior...”

9 Subjects: “...fretting wear...”

10 Subjects: “...wear...”

11 Subjects: “...lining wear...”

12 Subjects: “...wear...”

13 Subjects: “...wear...”