Manufacturing of Molds for Plastic products — Winter 2022

Give full form: (1) USM (2) AJM (3) ECDM

Explain : Machining by Erosion

Give detail classification of Machining Processes

Explain: Various nonferrous materials used in plastics mold manufacturing.

In which processes Non-metallic mold materials used for mold? List reasons for that.

What is CNC machine? Which are the Advantages and disadvantages of CNC machines?

List the common steel used for mold construction. List the properties of steel required for mold construction.

List the common alloying elements used in steel.

Explain various qualities of Good Mold Design.

What is heat treatment? Explain different surface hardening processes in brief.

Explain: Cryogenic Heat Treatment

Explain: (1) Through Hardening (2) Nitriding

Explain Chemical Etching and its application in mold manufacturing.

Define Lathe. List type of Lathe.

List the operation performed by CNC lathe with sketch.

Explain EDM process and its working principle with neat sketch.

Explain Vacuum Hardening.

What is Milling? Explain the role of CNC milling in mold manufacturing.

Explain Mold assembly procedure and tools used for it.

Explain the principle and operation of CMM

Short Note: Vernier Calipers.

Explain about Mold cost Estimation Process.

Explain about work holding devices for Lathe.

Define Rapid Proto typing. List the basic process steps.

List the various methods of Rapid Prototyping. Explain any two with neat sketch.