 |
| ||||||||||||||||||||||||
Setting-up the milling machine and the milling of offset faces ensues according to the following sequence of operations:
- checking the functionality of the milling machine to be used- positioning the clamping elements, tools, measuring and testing means for use
- checking the conformity of the workpieces with the work accompanying data sheets
- unclamping and setting-up the workpiece clamping means
- clamping the milling tool
- assembly and setting-up of a milling protective device and possibly also a chip catch
- position the milling machine table in operating direction
- set the cutting values and knee lowering for quick return
- clamp the workpiece, scratch, set the milling depth and rough milling of the offset faces
- dimensional inspection and setting to the desired end dimensions, final milling of the offset faces
- control of the dimensional accuracy in clamped condition
- unclamping resp. unchucking the workpiece, deburring the cutting edges, cleansing and dimensional, positional and surface roughness control
- if necessary, undertake commensurate corrections, otherwise mill the offset faces of all workpieces according to "position", that is to say rough and final milling ensues according to marked scale setting. Commensurately, the workpiece must lie directly adjacent to a stop. In the absence of a stop, the necessary measure (distance magnitude) would have to be set anew for each workpiece
- When using a gang cutter for simultaneously milling offset faces, the required distance between the gang cutter mills is attained by means of milling machine arbor collars and spacers. Determine the prescribed distance magnitude by means of a trial piece (material scrap piece)
- after having concluded the technique for milling offset faces, the milling machine, all tools, auxiliaries, measuring and testing means should be thoroughly cleaned.
What must be checked prior to taking a milling machine into
operation?
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
What does the milling direction (rate of feed) depend on when
milling offset
faces?
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
What must be heeded when handling sharp-edged
workpieces?
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
 |
