Machining tool and method for manufacturing a machining tool

Patent metadata

Field	Value
Publication number	US-10369636-B2
Application number	US-201514676567-A
Country	US
Kind code	B2
Filing date	Apr 1, 2015
Priority date	Apr 17, 2014
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

A machining tool, in the area of a tool tip, includes an integrated cooling structure for transporting a coolant. The cooling structure is optionally or in combination designed as a porous structure or at least one cooling channel having a bent reversing segment, so that two channel segments are oriented in opposite directions. The cooling structure is integrated into a base body of a carrier tool. According to a method of the invention, the cooling structure is manufactured by means of a 3D printing method.

First claim

What is claimed is:

1. A machining tool that extends in an axial direction along a rotational axis and comprising:
a tool tip;
a base body, the base body forming retaining webs between which a tool tip can be inserted and having an integrated cooling structure for conducting a coolant or lubricant, the cooling structure being integrated at least partly in the retaining webs; and
a chip flute formed in the base body, the chip flute having a chip flute wall,
wherein the cooling structure, at least in sections, is designed as a porous structure having a plurality of pores;
wherein at least a portion of the porous structure is located in the retaining webs of the base body and the porous structure exits at an outlet point provided on the chip flute wall; and
wherein the porous structure has a porosity ranging between 5% and 90%.

2. The machining tool as claimed in claim 1 , further comprising an outer cladding at which the porous structure exits at the outlet point.

3. The machining tool as claimed in claim 1 , wherein the outlet point is a planar outlet point.

4. A method for manufacturing a machining tool as claimed in claim 1 , wherein the machining tool is manufactured with an integrated cooling structure at least partially with the aid of a 3D printing method.

5. The machining tool as claimed in claim 1 , wherein the pores have an average pore size ranging between 15 and 45 μm.

6. The machining tool as claimed in claim 1 , wherein the pores of the porous structure are arranged in a honeycomb structure.

7. The machining tool as claimed in claim 1 , wherein the pores of the porous structure are arranged in a bionic, random structure.

Assignees

• Kennametal Inc

Inventors

• Ach Eduard
• Gey Christoph

Classifications

• B23B51/06 Primary

  Drills with lubricating or cooling equipment {(B23B51/042 takes precedence)} · CPC title

• B23C2210/03

  Cutting heads comprised of different material than the shank irrespective of whether the head is detachable from the shank · CPC title

• B23B27/10 Primary

  Cutting tools with special provision for cooling {(drills with lubricating or cooling equipment B23B51/06; features relating to lubricating or cooling of milling cutters B23C5/28; arrangements or devices for cooling or lubricating tools or work B23Q11/10)} · CPC title

• B23B2251/02

  Connections between shanks and removable cutting heads · CPC title

• B23C5/28

  Features relating to lubricating or cooling · CPC title