What are the parameters for graphite milling cutters?

What are the parameters for graphite milling cutters? Cutting speed refers to the relative movement speed of the cutter's cutting edge against the workpiece. Higher speeds are commonly used when machining graphite, as they facilitate faster removal of chips and heat, reducing thermal buildup between the tool and workpiece. However, excessively high speeds accelerate tool wear, requiring a balance between the two.

Feed per tooth is the material thickness removed by each cutting edge. Graphite is brittle, so this value should not be too large to prevent tool chipping; however, it should also not be too small, as excessive friction between tool and workpiece generates heat and accelerates wear.

Axial and Radial Depth of Cut

Axial depth of cut refers to the cutting length along the tool axis. Large axial depths should be avoided with slender milling cutters to prevent vibration or breakage; layered machining is typically employed to reduce stress.

Radial depth of cut denotes the cutting width perpendicular to the tool axis. Smaller values during finishing produce smoother surfaces but reduce efficiency, requiring a trade-off between quality and speed.

Auxiliary Process Details

Recommended cooling methods include oil mist or compressed air, which dissipate heat while blowing away graphite powder to prevent machine wear.

Tool paths should minimize abrupt turns and direct plunges. Employ angled or helical feed approaches to maintain smooth trajectories and reduce tool impact.

Graphite milling cutter parameters form an interconnected system, not isolated figures. From cutting speed to depth of cut, cooling methods, and toolpaths, adjustments must be made in conjunction with material properties, tool characteristics, and machining requirements. Finding the optimal combination is essential to balance machining quality and cost efficiency.

The above covers key aspects of graphite milling cutter parameters. Zhongye Da shares these insights here. Graphite milling cutter parameters form an interconnected, mutually constrained organic whole.