A: -
B: +
C: 0
D: uncertain
举一反三
- 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
- When installing the turning tool, the turning tool () must<br/>coincide with the rotating center of the workpiece. A: ,main cutting edge B: ,side cutting edge C: ,front cutting surface D: ,blade tip
- Cutting edge inclination angle is the angle included between major cutting edge and________. A: cutting edge plane B: reference plane C: major motion direction D: feed direction
- 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 °
- 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
内容
- 0
The<br/>back angle of the tool is measured in the () plane. A: Cutting plane PS B: In the orthogonal plane Po passing the selected point of the main<br/>cutting edge C: None of the above is true D: Inside the base PR passing the selected point of the main cutting<br/>edge
- 1
(10 points) The rake angle is measured in the () plane. A: in the orthogonal plane Po passing the selected point of the main cutting edge B: inside the base Pr passing the selected point of the main cutting edge C: in cutting plane Ps D: none of the above is true
- 2
The dip Angle of the blade is measured in () plane. A: cutting plane, ps B: the main point of orthogonal plane cutting edge selected Po C: Within pr of the base plane passing the selected point of the main<br/>cutting edge D: None of the above is correct
- 3
The tool tip of the external turning tool is installed higher than the workpiece rotation axis, the working rake Angle of turning tool is （ ）than that of marked rake angle A: lager B: smaller C: equal to D: unidentified
- 4
We have（ ） a cutting edge advantage.