Oberflächengüte Anforderungen Luftfahrt. Erhalten Sie sofortige Radial Engagement (%), Max Step-over (mm) für Ihre Zerspanungsparameter.
Was kostet eine falsche Zahl? Lass uns die Mathematik für ein typisches Job-Shop-Szenario berechnen. Wenn Ihr Stufenfräsen 15% zu aggressiv ist, kaufen Sie nicht nur mehr CERATIZIT-Schaftfräser — Sie zahlen für unerwartete Stillstände, Nacharbeit und verpasste Liefertermine.
| Premature Gühring tool failures | $6,400/yr |
| Unplanned machine downtime | $12,200/yr |
| Rework / scrap parts | $8,700/yr |
| Excess Schunk holder wear | $2,100/yr |
| Total Annual Loss | $29,400/yr |
Now flip the scenario. By optimizing Stufenfräsen — using the manufacturer's recommended starting parameters for your specific CERATIZIT oder Gühring tool, verified on a Renishaw presetter — you could recover nearly $30K annually. That's a new Mazak tool probe oder a year's worth of CERATIZIT inserts.
Der ROI ist sofort. Erstes Teil optimiert, erster Tag der Einsparungen.
Radial engagement (step-over) determines how much of the tool diameter is engaged in the cut. Excessive radial engagement overloads the tool and causes vibration, while too little engagement causes rubbing and poor productivity.
40-70% for most steels with carbide end mills. Below 40% is inefficient (too many passes). Above 80% approaches slotting conditions and should use reduced feed. Aluminium can tolerate 60-80% at high feed rates.
Step-over is the primary determinant of cusp height in 3D surface machining. For ball mills: cusp height = step-over² / (8 × tool radius). Halving the step-over reduces cusp height by 75%. For flat end mills, step-over has minimal effect on floor finish.
Scallop (cusp) height is the ridge left between adjacent tool passes. It is determined by step-over and tool nose radius. CAM software typically lets you specify maximum scallop height; it then calculates the required step-over automatically.
Enter your tool diameter and radial width of cut (step-over). The calculator shows the engagement percentage and the recommended maximum step-over. For roughing, keep engagement at 40-70%; for finishing, use much smaller step-overs.
Continue with closely related tools from the machining calculator library.
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