| 摘要 |
The Invention relates to tools for the machining of materials by milling. The invention provides an improved form for a rotary cutting tool such as an end-mill, configured to extend tool life while increasing metal removal rates.The invention provides a rotary multi-tooth cutter, the cutting edge of each tooth being provided along its length with a repeated wave form, comprising four substantially straight sections interconnected by radii, the first section being identical with the unmodified cutting edge. The second section adjoins the first section on a side nearer the tool shank and extending at an angle to the first section into the tooth. The third section, adjoining the first section on a side nearer the tool tip, extends at an angle to the first section into the tooth. The fourth section is connected to the third section extending into the tooth at an angle greater than the third section. A root radius connecting the fourth section to the adjoining second section of the adjacent form. |
