Fig. 1 shows two components joined by a threaded... | Design & Technology: Product Design 9252 | Paper 1 Mock 01 | Technical, designing and making principles

Question 1 Report

Fig. 1 shows two components joined by a threaded insert moulded into a polymer part.

Explain three advantages of using a threaded insert rather than cutting a thread directly in the polymer. [3]

Answer

Answer Details

A threaded insert is a metal threaded component moulded into the polymer. It improves the joint in three linked ways:

The metal thread is much stronger than a thread cut directly into polymer, so the joint can be tightened properly [1].
It withstands repeated assembly and disassembly without the thread stripping [1].
It spreads the clamping load into the moulding rather than concentrating the force on only a few polymer threads [1].

Fig. 1 shows two components joined by a threaded insert moulded into a polymer part. Explain three advantages of using a threaded insert rather than cutting...