Question

Which of the following is true for generating method of gear formation?

(a) No use of cutter

(b) Profiles of several teeth are formed simultaneously

(c) Linear motion of the tool and the blank is not constant

(d) Each tool space is cut independently

The question was asked during an interview for a job.

My enquiry is from Sources of Errors in Manufacturing Gears topic in portion Measurement and Testing of Gears of Engineering Metrology

Answer 1

The correct choice is (b) Profiles of several teeth are formed simultaneously

To explain I would say: Gear teeth are generally made by two methods, reproducing method and generating method. Method in which the cutting tool forms the several teeth profiles simultaneously during constant relative motion of the blank and tool is known as Generating method.