1. What is plastic processing? Plastic Processing is one of the fastest growing segments of manufacturing plastic processing is a form conversion process 2. Define injection moulding. Injection molding is a process of producing parts form thermoplastics and thermo plastics. 3. State the two units of a ram type of injection moulding process Injection Unit…
1. Define neutral axis? The axis which separates the portions of tension and compression is known as “Neutral axis” or “Neutral layer”. 2. What is bend angle? Bend angle is the angle between the two extreme positions of bend radius. 3. List down the types of bending dies? Edge bending V – Bending U –…
1. How is cutting operation carried out? The work piece is stressed beyond its ultimate strength and cut-off into two pieces. 2. List out the various cutting operations. a. Blanking b. Punching c. Shearing d. Parting off 3. Mention the three different ways of working sheet metal in presses. a. Shearing b. Bending c. Drawing…
1. What is the function of jig bushes? Drill bushes are used to guide drills, reamers and other cutting tools into the proper position on the work piece. 2. What are the two types of press fit bushes? a. Plain or headless bushes b. Flanged or headed bushes 3. Distinguish between the channel and box…
1. Define the term Tool design. Tool design is the process of designing and developing the tools, methods, and techniques necessary to improve manufacturing efficiency and productivity. 2. Name the various operations that can be performed using Jig and Fixture. Jig is usually lighter in construction. Jigs are used on drilling, reaming, tapping and counter…