and perform rough machining before finish machining.
A: perform datum surface machining before that of other surfaces
B: perform main functional surface machining before less important surface machining
C: perform plane surface machining before hole surface machining
D: perform complex surface machining before simple surface machining
举一反三
- The machining quality of parts includes machining accuracy and surface quality.
- 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.
- 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:
- The following machining methods belong to the method of fixed size cutting tool(). A: Turning machining B: Milling machining C: Drilling machining D: Grinding machining
- 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
内容
- 0
The formal machining can be carried out after the CNC machining program is compiled.
- 1
According to the shape and processing requirements, programmer compiles machining process into machining program.（） A: 对 B: 错
- 2
The incorrect statement about the locating of the workpiece in the machining process is （ ）. A: Complete locating should be adopted as far as possible to ensure the locating accuracy B: To adopt incomplete locating as far as possible according to machining requirements C: Redundent locating can be used in machining process D: Insufficient locating is strictly prohibited in machining process
- 3
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.
- 4
We should loads pallet 1 into the ________ for machining purposes. A: machining compartment B: loading station C: working area D: office area