A: 正确
B: 错误
举一反三
- The slotting machine is mainly used for machining the inner surface of the workpiece, and the main motion is the vertical reciprocal rectilinear motion of the tool. A: 正确 B: 错误
- What is the main form of turning machining? ( ) A: Workpiece rotation B: Workpiece linear motion C: Tool rotation D: Tool linear motion
- There is one and only one ( ) on the various machine tools. A: main motion B: feed motion C: cutting motion D: tool motion
- (3 points) The machining process system includes (). A: machine tool, tool, fixture and workpiece B: worker, tool, fixture and workpiece C: machine tool, tool, worker and workpiece D: machine tool, tool, fixture and worker
- (3 points) The core of machining process system is (). A: machine tool B: fixture C: tool D: workpiece
内容
- 0
The forms of fluid motion in impeller include A: Circular motion B: Relative motion C: Vertical motion D: Absolute motion
- 1
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:
- 2
The crankshaft is used to change the ____________ motion of the piston into __________ motion. A: reciprocating, rotary B: rotary, reciprocating C: vertical, horizontal D: horizontal, vertical
- 3
The radial thrust force Fp , which consumes no power, is the main reason that causes the machine tool vibration and affects the machining accuracy. A: 正确 B: 错误
- 4
CNC machining parts with high accuracy is mainly due to ( ). A: Multiple clamping single station machining B: Once clamping multi-station machining C: Multiple clamping and multi-station machining D: Small machine tool vibration