by Sunday | Oct 6 | NABTEB QUESTIONS
Parts (i) stocks (ii) Face (Round or flat) (iii) Raised handle (iv) Cutting iron (v) Cap iron (vi) Releasing thumb screw (vii) Adjustment screws.
by Sunday | Oct 6 | NABTEB QUESTIONS
Arc welding is the fusion of two or more metals together using electricity and electrode. Arc welding is used in joining materials of thick sections. While gas welding is the fusion of two or more metals using gas (oxygen and acetylene) flame to melt or fuse the metal...
by Sunday | Oct 6 | NABTEB QUESTIONS
i. Hand forging ii. Machine forging iii. Drop forging
by Sunday | Oct 6 | NABTEB QUESTIONS
Flatter Set Hammer Larger face Smaller face Used for making hammered surface flat Used to make square corners and shoulder
by Sunday | Oct 6 | NABTEB QUESTIONS
Case hardening is a surface hardening process which involves hardening the thin surface layer on steel while the inner core remains quite soft. Case hardening process actually involves two important heat treatment phases or steps. 1. Carburizing 2. Hardening In...
by Sunday | Oct 6 | NABTEB QUESTIONS
1. Annealing: This is a heat treatment process which is used to produce softening and to improve machinability of hand or hardened steel. It relieves internal stress and strain which may be caused by machining, previous heat treatment or by cold working operations. 2....
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