A: lager
B: smaller
C: equal to
D: unidentified
举一反三
- What is the main form of turning machining? ( ) A: Workpiece rotation B: Workpiece linear motion C: Tool rotation D: Tool linear motion
- The rake angle of the cutting tool affects the deformation in the cutting process, and the strength of the tool.
- When the tip of turning tool is at the highest position of the main cutting edge, The inclination angle of the edge is ( ) A: - B: + C: 0 D: uncertain
- The sum of rake Angle, clearance angle and wedge Angle is ( ).The sum of the major cutting edge angle, minor cutting edge angle, and tool included angle. is ( ) A: 90 ° , 180 ° B: 90 ° , 90 ° C: 180 ° , 180 ° D: 180 ° , 90 °
- Among<br/>the tools listed below, the one whose manufacturing error has no<br/>effect on machining accuracy is (). A: External turning tool B: broach C: Reamer D: Angle milling cutter
内容
- 0
When installing the turning tool, the turning tool ( ) must coincide with the rotating center of the workpiece. A: main cutting edge B: side cutting edge C: front cutting surface D: blade tip
- 1
(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
- 2
When determining the coordinate system of the CNC machine tool, which of the following principles is adopted for the movement relationship between the tool and the workpiece? ( ) A: Assuming the tool moves, the workpiece is stationary B: Assuming the workpiece moves, the tool is stationary C: It depends on the situation D: Assuming that the tool and workpiece are not moving
- 3
Measured<br/>in main section, the angle between the rake surface and the reference<br/>plane is (). A: rake γo B: clearance angle αo C: Cutting edge angle κr D: Inclination angle λs
- 4
In turning, the<br/>most cutting heat ()。 A: pass<br/>on the workpiece B: pass<br/>on the cutter C: pass<br/>on the machine tool D: take away by chip