Related Questions

Among punching and drilling, punching is safer.
In a punching press, the requirement is to punch 40 mm diameter holes in a plate having a thickness of 15 mm. The rate at which the holes should be punched is 30 holes/min. Energy requirement is of 6 N-m per mm2 of sheared area. If the punching takes time 1/10 of a second and the speed of the flywheel varies from 160 to 140 rpm, determine the mass of the flywheel having radius of gyration of 1 m.
If q is the punching shear resistance per unit area a, is the side of a square footing for a column of side b, carrying a weight W including the weight of the footing, the depth (D) of the footing from punching shear consideration, is
In a punching press, load is 0 at the time of punching.
Which among the NC operations given below are continuous path operations?
Arc Welding (AW), Drilling (D), Laser Cutting of Sheet Metal (LC), Milling (M), Punching in Sheet Metal (P), Spot Welding (SW)
Ram sell his goods 25% cheaper than Shyam and 25% dearer than Bram. How much % is Bram's good cheaper than Shyam ?
The cutting speed for drilling aluminium, brass and bronze with carbon steel drills is _________ cutting speed for drilling mild steel with high speed steel drills.
State whether the following statement is true or false regarding ES drilling. “In ES drilling, hydrochloric acid is used for machining aluminium and its alloys.”
_________________ drilling has rapidly become an inexpensive alternative to outdated mechanical hole drilling methods.
What is the maximum value of drilling depth in trepanning method of laser drilling process?