Drilling tool and method for producing a drilled hole
AssigneeEMUGE-Werk Richard Glimpel GmbH & Co. KG Fabrik fur Prazisionswerkzeuge
InventorsDietmar Hechtle, Peter Kopton
Life of this patent
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Abstract
The invention relates to a tool for forming a drilled hole (B), comprising a shank that is rotatable or rotates about a tool axis (A), at least one first portion, which is rotatable or rotates about the tool axis (A), for producing and/or widening a drilled hole (B) by chip cutting, and a second portion, which rotates about the tool axis (A), for widening a drilled hole (B) without chip cutting, wherein the second portion is arranged behind the first portion in a direction of advance (V) of the tool. The invention additionally relates to a method for producing a drilled hole (B).
Claims10
A tool for forming a drilled hole (B), comprising:
- a shank that is rotatable about a tool axis (A);
- at least one first portion, which is rotatable about the tool axis (A), for producing and/or widening a drilled hole (B) by chip cutting;
- and
- a second portion, which rotates about the tool axis (A), for widening a drilled hole (B) without chip cutting;
- wherein the second portion is arranged behind the first portion in a direction of advance (V) of the tool,
- wherein there is/are one or more cutting portions arranged in the first portion,
- at least one of the one or more cutting portions is a secondary cutting portion;
- the at least one secondary cutting portion(s) is/are arranged substantially parallel to the tool axis (A);
- there is at least one forming ridge arranged in the second portion;
- the forming ridge extends substantially parallel to the at least one secondary cutting portion(s);
- and
- the forming ridge has a clearance angle (β) oriented contrary to the direction of advance (V).
A tool for forming a drilled hole (B), comprising:
- a shank that is rotatable about a tool axis (A);
- at least one first portion, which is rotatable about the tool axis (A), for producing and/or widening a drilled hole (B) by chip cutting;
- and
- a second portion, which rotates about the tool axis (A), for widening a drilled hole (B) without chip cutting;
- wherein the second portion is arranged behind the first portion in a direction of advance (V) of the tool,
- wherein there is/are one or more cutting portions arranged in the first portion,
- at least one of the one or more cutting portions is a secondary cutting portion;
- the at least one secondary cutting portion(s) is/are arranged substantially parallel to the tool axis (A);
- the at least one secondary cutting portion(s) having cutting bevels with a length (1s);
- wherein the tool comprises a plurality of forming ridges with forming bevels, the forming ridges being arranged parallel to the at least one secondary cutting portion(s);
- wherein the forming bevels extend in the first portion and second portion, the forming bevels having a length (1f), the length (1f) of the forming bevels being greater than the length (1s) of the cutting bevels.
Dependencies are inferred from the claim text.