Question

In order to produce a proper radius, by how much should the tool tip overlap the machined area?

(a) 0.5 to 1 mm

(b) 1 to 1.5 mm

(c) 1.5 to 2 mm

(d) 2 to 2.5 mm

The question was posed to me in an interview for job.

This interesting question is from Electrochemical Deburring topic in chapter Electrochemical Processes of Advanced Machining

Answer 1

The correct choice is (b) 1 to 1.5 mm

Easy explanation: In ECDB, the tool tip should overlap the machined area by 1.5 to 2 mm in order to produce a proper radius.