Which of the following situations is not suitable for NC machining?
A: Machining content that needs to be adjusted over a longer period of time
B: A situation in which a general machine tool is difficult to process and its quality is difficult to guarantee
C: Other sporadic location that can not be processed in one installation
D: The occasions of low efficiency and unstable quality with general machine tools
A: Machining content that needs to be adjusted over a longer period of time
B: A situation in which a general machine tool is difficult to process and its quality is difficult to guarantee
C: Other sporadic location that can not be processed in one installation
D: The occasions of low efficiency and unstable quality with general machine tools
举一反三
- High machining accuracy,( ), high automation, low labor intensity and high production efficiency are the machining characteristics of CNC machine tools. A: Machining parts with simple contour and mass production B: Strong adaptability to processing objects C: A single piece of parts which is difficult to fit or must rely on manual correction and positioning in order to machining accuracy. D: Suitable for machining billet with special large allowance and uneven material and allowance.
- The following is not the geometric error of machining process system (). A: machining principle error B: geometric error of machine tool C: adjustment error D: tool manufacturing error
- Rough machining and fine machining should be seperated for high precision parts, the main reasons do not include item. A: Detect the blank defects early, and use the equipment reasonably B: Can correct the error caused in rough machining C: Can correct the manufacturing error of fixture and tool in the process system D: Can correct the manufacturing and installation adjustment errors of machine tools in the process system
- One of the elements constituting the process is ().<br/>A, the same machine tool B, the same fixture C, the same tool D, the<br/>same machining surface A:
- (3 points) The core of machining process system is (). A: machine tool B: fixture C: tool D: workpiece