Milling tool for the processing of workpieces by cutting
AssigneeFraisa Holding AG
InventorsJosef Maushart, Tiziano Sichi
Life of this patent
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Abstract
A milling tool for the processing of workpieces by cutting is provided with multiple cutting flanks (3) and flutes (4) arranged in between these. The cutting flanks (3) have cutting edges (6) along the cutting side (5) of which bezels (10) are provided. At least one bezel (10) extending along a cutting edge (6) has an effective cutting angle (y2) that differs from the effective cutting angles (y2′, y2″, . . . ) of the bezels (10) extending along the further cutting edges (6). This asymmetric arrangement of the bezels (10) in a tool results in a calmer running of the tool which impacts the surface quality of the processed surface and results in a better serviceable life of the tool.
Claims10
Milling tool for the processing of workpieces by cutting that is provided with multiple cutting flanks (3) and flutes (4) arranged in between these, whereby said cutting flanks (3) have cutting edges (6) along the cutting side (5) of which bezels (10) are provided that have a wedge angle (β) that is more obtuse than the wedge angle (α) of the cutting edges (6), wherein at least one bezel (10) extending along a cutting edge (6) has an effective cutting angle (y2) that differs from the effective cutting angles (y2′, y2″, . . . ) of the bezels (10) extending along the further cutting edges (6).
Milling tool for the processing of workpieces by cutting that is provided with multiple cutting flanks (3) and flutes (4) arranged in between these, whereby said cutting flanks (3) have cutting edges (6) along the cutting side (5) of which bezels (10) are provided that have a wedge angle (13) that is more obtuse than the wedge angle (α) of the cutting edges (6), wherein at least one bezel (10) extending along a cutting edge (6) has an effective cutting angle (y2) that differs from the effective cutting angles (y2′, y2″, . . . ) of the bezels (10) extending along the further cutting edges (6), and wherein the cutting edges (6) of the cutting flanks (3) have different angles of twist (δ).
Milling tool for the processing of workpieces by cutting that is provided with multiple cutting flanks (3) and flutes (4) arranged in between these, whereby said cutting flanks (3) have cutting edges (6) along the cutting side (5) of which bezels (10) are provided that have a wedge angle (β) that is more obtuse than the wedge angle (α) of the cutting edges (6), wherein at least one bezel (10) extending along a cutting edge (6) has an effective cutting angle (y2) that differs from the effective cutting angles (y2′, y2″, . . . ) of the bezels (10) extending along the further cutting edges (6), and wherein the cutting edges (6) of the cutting flanks (3) are provided with bulges (11) that protrude into the flutes (4) such that the angle of twist (ε) that each extends along a cutting edge (6) has different magnitudes.
Dependencies are inferred from the claim text.