Songpu Hobbing Slitting Saw Titanium Coated Rotary Cutter Blades 210mm

Stick Packaging Hobbing Blade Circular Packaging Knife Slitting Blade For Cutting Metal Sheets

a) Form Cutters:

These are designed to produce a specific shape on the workpiece. One of the examples is the side and face milling cutters (Refer Fig. 16.46).

It may be noted that it has teeth on the circumferential surface as well as on both sides. The teeth may be either staggered or straight.

Another example of form cutters is the thread milling cutter in which formed cutter is shaped to mill screw threads having pitch equal to tooth pitch of the cutter (Refer Fig. 16.47).

Various other types of form milling cutters are convex milling cutters, concave milling cutters, corner-rounding milling cutters, pocket milling cutters, spindle milling cutters, form milling gang cutters, etc.

(b) Shaped or Form Profile Cutters:

In these cutters, sharpening is done by grinding a small land back of the cutting edge. As the contour is to be exactly reproduced each time the sharpening is done, therefore, its application is limited to simple outlines. These may be either solid or inserted blade type.

(c) Form or Cam-Relieved Cutters:

These cutters are sharpened on the face of the tooth, thus preserving the original profile. These are, therefore, very suitable for complicated shapes as they can be sharpened again and again easily until the teeth are too slender to be used.

These cutters are generally of the solid type and the clearance at the back of the cutting edge is produced by a form of master tool in a cam-relieving machine, giving all teeth the contour of the master tool.