
| Problem | Problema | Possible Cause | Causa Possível | Causa Possible | Solution | Solução | Solucíon | |
| Steel, Ferritic and Martensitic Stainless Steel |
Increased flank wear Cutting speed too high Reduce cutting speed / Use coated insert
| ISO | PSM | Material Example | Description | Rm(N/mm²) | kcX (N/mm²) | mc |
| P | 1 2 | Ck50 42CrMnNiMo 4 | Structural steels; ordinary carbon steels with low to medium carbon content( Normal tool steels; harder steels for toughening; Martensitic stainless steels; Carbon steels with high carbon content (>0,5%C); Ferritic and martensitic stainless steels. | 550 | 1500 1900 | 0.25 0.24 |
| 3 | X40CrMoV51 | Normal tool steels; Harder steels for toughening; Martensitic stainless steels; Difficult tool steels; High-alloy steels with high hardness; Martensitic stainless steels. | 900 | 2000 | 0.24 |
| ISO | PSM | Material Example | Description Rm(N/m | m²) kcX (N/mm²) | mc |
| 4 | X8CrNiS189 | Easy-cutting stainless steels; Free-cutting stainless steels; Cal- cium-treated stainless steels. | 1750 | 0.22 | |
| M | 5 | X2CrNiMo17122 | Moderately to difficult stainless steels: Austenitic and duplex. | 2050 | 0.20 |
| 6 | X2CrNiMoN2253 | Very difficult stainless steels: Austenitic and duplex. | 2150 | 0.20 |
| Cutting edge breakage | • Depth of cut too large | • Decrease depth of cut / Increase number of passes | Cast Iron |
| Quebra da aresta de cortex | • Profundidade de corte demasiado larga | • Diminua a profundidade de corte / Aumente o numero de passos | |
| Rotura del flanco de corte | • Profundidad de corte demasiado grande | • Reducir la profundidad de corte / Aumentar el número de pasos |
| ISO | PSM | Material Exam | ple Description Rm(N/m | m²) kcX (N/mm²) | mc |
| 7 | GJL-150 | Medium / hard cast iron; Grey cast iron. | 1150 | 0.22 | |
| K | 8 | GJL-250 | Low-alloy cast iron; Malleable cast iron; Nodular cast iron. | 1225 | 0.25 |
| 9 | GJL-350 | Difficult high-alloy cast iron; Difficult malleable cast iron; Nod- ular cast iron | 1470 | 0.30 |
| Built-up edge | • Incorrect cutting speed | • Change the cutting speed |
| Aresta postiça | • Velocidade de corte incorrecta | • Altere a velocidade de corte |
| Filos recrescidos | • Velocidad de corte incorrecta | • Cambiar la velocidad de corte |
Aluminium and Non-Ferrouses
(N/mm²)
| Thread profile is too shallow | • The tool is not at the workpiece axis height | • Change tool height | ||||
| Perfil da rosca muito irregular | • A pastilha não está a maquinar a crista da rosca | • Altere o posicionamento em altura da ferramenta | AW7075 | |||
| Perfil de la rosca muy irregular | • El inserto no está mecanizando | • Cambiar la posición en la altura de la herramienta | N | 10 | AISi12 | Aluminium alloys: Low Si Aluminium alloys: |
High Si Copper alloys
(N/mm²)
| Thread profile is too shallow | • Cutting speed too low | • Increase cutting speed | ||||||
| Má qualidade superfície | • Velocidade de corte baixa | • Aumente a velocidade de corte | S | Ni-based super-alloys | 3300 | 0.24 | ||
| Acabado de superficie malo | • Velocidad de corte baja | • Aumentar la velocidad de corte | 11 | Inconel 718 | Titanium alloys |
1450 0.23
E - 796 797