Keeping all other parameters unchanged, the tool wear in electrical discharge machining would be less if the tool material has
Which of the following non-conventional machining methods does not cause tool wear?
Consider the following statement pertaining to EDM:
1. Irregularly shaped holes and cavities are easily produced.
2. It has higher power consumption.
3. Work and tool materials should be electrically conducting.
4. Metal removal is independent of discharge voltage.
Which of the above statements are valid?
MRR is dependent on spark voltage.
In electric discharge machining, better surface finish is obtained at
Consider the following materials:
Which of the above material is used as wire material in wire-EDM process?
Wires in wire-EDM should have sufficient tensile strength and fracture toughness and high electrical conductivity. The wire is generally used only once, as it is relatively inexpensively inexpensive, and is then recycled. The wire is usually made of brass, copper, tungsten or molybdenum.
Match the List-I (Unconventional machining method) with List-ll (Medium used):
Match the List-I with List-ll:
A. Die sinking
C. Five hole drilling (thin materials)
D. Cutting/sharpening hard materials
Which of the following methods uses a chemical known as etchant during machining?
Which of the following processes.is called a micromachining operation?
Which of the following is not a bulk metal removal process?