'Qualified tooling' and 'preset tooling', these two basic types o
| 'Qualified tooling' and 'preset tooling', these two basic types of tooling are used in :
A. Conventional lathe machines
B. Conventional milling machines
C. Unconventional machining centres
D. NC turning machines
Please scroll down to see the correct answer and solution guide.
Right Answer is: D
SOLUTION
Explanation:
Tooling:
Tooling is the process of designing and engineering the tools that are necessary to manufacture parts or components.
In order to produce non-productive time to zero level, quickly changeable tool should be used.
Types of CNC tools are:
Preset Tools:
- This tool is used to the preset axial and radial position of the tool tip on the tool holder.
- Once this is done, the tool holder is ready to be mounted on the machine and produce a known dimension.
- Accuracy in the order of ± 0.0002 mm can be quickly and easily maintained.
Qualified Tools:
- These tools have cutting edge or tip maintained at a fixed distance within a tolerance of ± 0.05 mm with respect to the reference surface of the holder.
- No presetting is required, therefore investment is less.
- Control dimensions of the tool are nominal and fixed, hence programming is easy.
- These tools need not be measured individually.