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  1. Machining / Cutting

Example of Profile Milling Cutter Design

Nov. 6, 2013
For profiles less than 10 mm deep Always use a set thickness

Sometimes tool-designers must design complicated profile milling cutters to complete a machining task (see above sketch, 5.)

If a profile is no more 10 mm (0.3937 inches) deep, some designers make this cut using just one milling cutter (1), rather than dividing the step for separate cutters.

In this case, to make one cutter more economically, we invested less in materials, time, and money .

Americanmachinist Com Sites Americanmachinist com Files Uploads 2013 11 Am1031 Grizotsky 1

To produce and machine work-details and orientation cutters relative to the work (5) in the fixture 2, always use a set block (3) and fillers (4), with thickness (a.)

In calculation, to use the dimension of work M1, M2, M3 of the cutter, M4 = M1 - M3, M4-a  is the distance from pin 6 to set block.

About the Author

Mark Grizotsky | Owner

Mark Grizotsky, owner of MLG Tool Design in Willowdale, Ontario, has been a major contributor and influencer to machinists everywhere with his insights to machine design and set-up, tooling design and selection, and advice for preparation and processes.

Figures 1 and 2 Show the alternative efforts to hold the workpiece vertically in a vice Figure 1 and vertically in a vice and clamp with a bolt and nut Figure 2 but both efforts resulted in the same poor quality finish
Americanmachinist Com Sites Americanmachinist com Files Uploads 2013 05 Grizotsky May15 Fig1
A sketch not drawn to scale showing the principles of the relationship between cutting tools and the allowances for details on the left is the machining slot on the right is the machining cutter
When regrinding the trapezoidal profile of teeth tool designers need to verify the geometric formula of elements of trapezia See formula below