Milling cutters commonly used on CNC machine tools

8 5月 2018 | 没有评论 | posted by admin | in Article

First, the face milling cutter, the face milling cutter has a cutting edge on the circumferential surface and the end face, and the end cutting edge is a secondary cutting edge.

Second, end mills, end mill cutters on the cylindrical surface and the end surface have cutting edges, they can be cut at the same time, can also be individually cut.

Third, the mold cutter, his structural characteristics are the ball head or end face is not full of cutting edge, circular edge and ball head edge arc connection, can be radial and axial feed.

Fourth, the keyway milling cutter, it has two teeth, cylindrical surface and end surface have cutting edges, the edge of the edge to the center. During processing, the axial feed advances to the groove depth, and then the full length of the keyway is milled in the direction of the keyway.

5. Drum-shaped milling cutter. His cutting edge is distributed on an arc surface with a radius of R. There is no cutting edge on the end face.

Sixth, forming cutters are generally designed and manufactured for specific workpieces or processing contents.

When milling narrow and shallow grooves, if you do not have a suitable milling cutter, you can find a triangular carbide blade into a small milling cutter

25 4月 2018 | 没有评论 | posted by admin | in Article

Find the thickness of the triangle carbide car blade and measure its thickness. When it is too thick, grind it to the size with a grinder. According to the size of the center hole of the blade, a milling cutter rod is manufactured, and after the cutter blade is mounted on the milling cutter rod, the nut is fastened with a small nut. Since the center hole of the triangular hard alloy car blade has no keyway, the key cannot transmit force, and the fastening force of the small nut is too small, so the car blade should be welded to the milling cutter bar by the brazing method. After the workpiece is clamped on the fixture and milled, it can be milled. Because of this cutter is a negative rake angle. Milling depth, feedrate, and milling speed cannot be large, and the coolant is added to cool.

Back to determine the amount of knife

24 4月 2018 | 没有评论 | posted by admin | in Article

The amount of back knife is determined according to the stiffness of the machine tool, workpiece and tool. Under the condition of permissible rigidity, the amount of the back tool should be equal to the machining allowance of the workpiece. This can reduce the number of passes and increase the production efficiency. In order to ensure the quality of the processing surface, can leave a small amount of finishing allowance, generally 0.2 – 0.5mm.