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Variable core diameter cutting tool and method for producing the same

A cutting tool and core technology, applied in the direction of manufacturing tools, drilling tool accessories, metal processing equipment, etc., can solve problems such as cracking of pressing tools

Inactive Publication Date: 2021-05-04
LAMINAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One can speculate on the reasons for the lack of success of the concept, but it may relate to the fact that a large number of pressed tools could break during removal from the mold

Method used

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  • Variable core diameter cutting tool and method for producing the same
  • Variable core diameter cutting tool and method for producing the same
  • Variable core diameter cutting tool and method for producing the same

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Embodiment Construction

[0038]The following description of preferred embodiments is merely exemplary in nature and is in no way intended to limit the scope of the invention, its application or uses.

[0039] For the purposes of this specification, the term "comprise" and its various grammatical forms are intended to mean "including among others". It is not intended to mean "consisting only of".

[0040] The invention relates to the manufacture by pressing of a product selected from cutting tools, blank cutting tools and / or precursor cutting tools, and to products obtainable by the process of the invention. The invention also relates to a mold for producing said product by pressing.

[0041] JP H08 260006 discloses a device for producing drill bits by pressing. Furthermore, the applicant of the present application has developed a process for manufacturing cutting tools, blank tools and / or precursor cutting tools by pressing, which is disclosed in the not yet published European application EP 1719271...

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PUM

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Abstract

The present invention concerns a pressed cutting tool comprising a variable core diameter, a mold and a method for producing the cutting tool by pressing. Said cutting tool preferably comprises a shaft and a part comprising one or more helical flutes, wherein low points or lines in said flutes define the shape of said core. In a preferred embodiment, said core is conical. In a preferred embodiment, said cutting tool is an end mill and / or a drill.

Description

technical field [0001] The present invention relates to cutting tools and methods of production thereof, in particular to methods of producing cutting tools by pressing. The invention relates to a cutting tool comprising a core diameter, wherein the core diameter is variable along the axis of the cutting tool. Background technique [0002] Cutting tools such as end mills are typically produced by feeding granular material such as metal and / or cemented carbide powder into an extruder to press and extrude rods, hydrogen dewaxing, sintering, cutting, centerless grinding, slot grinding and coated to manufacture. Different steps may be performed by different manufacturers. The dewaxing step is usually performed in a hydrogen furnace and sintered in a HIP (hot isostatic pressing) furnace. In some cases, the grooves were honed prior to cleaning and coating. [0003] The cutting edge or groove of the cutting tool is formed in the step of grinding the rod in order to obtain the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B51/00B23B51/02B23B51/06B23C5/10B22F3/03B23D77/00B23P15/32B22F5/00C22C29/00B23P15/28B22F3/02
CPCB22F3/02B22F3/03B22F2005/001B22F2005/004B23B51/02B23C5/10B23C2210/241B23C2210/325B23C2210/405B23C2210/445B23P15/28C22C29/00B23B2251/404B22F3/004
Inventor 萨尔瓦多·梅朱埃罗·埃多
Owner LAMINAR TECH