The present post (Part-2) contains the important basic concepts in Production technology in Mechanical Engineering. Note down each concept which might help in GATE 2019 Mechanical.
- An important factor to be considered while designing a core print is molding sand characteristics.
- Weld spatter refers to welding defect.
- If ‘t’ is the thickness of the sheet to be spot welded, then electrode tip diameter is equal to √t.
- A sprue is a tool used in mold repairing.
- Gate is a vent hole to allow for the hot gases to escape.
- Core prints provided to from seat to support and hold the core.
- The equipment that is used in the pit for the supply of air is known as a centrifugal blower.
- Draft allowance on castings is generally 1-2 mm/M.
- Tumbling is done so as to clean the surface of small parts.
- The purpose of inoculation is to modify the structure and properties of a cast metal.
- The draft allowance on the metallic pattern as compared to wooden ones is less.
- Angle iron is not an angle measuring device.
- The mould for casting ferrous materials in continuous casting process is made of copper.
- If V is the volume of metal in a casting and A its surface areas, then a time of solidification will be proportional to V2, 1/A2.
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