JPH05285707A - Heat-dissipating method for cutting tip by plating - Google Patents

Abstract

PURPOSE:To keep cutting life and sharpness quality of a cutter, by rapidly diffusing cutting heat from the tip for restricting rise of temperature of the tip. CONSTITUTION:Cutting heat is diffused from the tip of a cutting tool and rise of temperature of the tip is restricted by plating the periphery of the tip with a material whose thermal conductivity is higher than a cutter 2, such as copper, silver, gold or aluminium, for forming a metal skin 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting tool, a milling tool, a drill, a reamer, a tap, a die, a broach, a saw, a planer, a marking needle, and other cutting tools.

[0002]

2. Description of the Related Art The rise in the temperature of the cutting edge of a blade is related to the life of the blade and the accuracy of the product. For this reason, for example, forced cooling is performed with cutting oil or the like.

[0003]

The present invention relates to a method of rapidly diffusing and removing cutting heat from a cutting edge, and in cutting a material having small thermal conductivity such as stainless steel, the temperature rise of the cutting edge of the cutting tool. Then, the cutting edge soon became dull, and the tool life was very short. As a solution to that, efforts have been made to develop tools with increased hardness and heat resistance. The present invention has advanced a study of a method that does not increase the temperature of the cutting edge by adding a simpler method.

[0004]

Comparing the thermal conductivities of iron and other metals, it is the ratio of copper 332 to carbon steel 39, silver 360, gold 256, aluminum 175.
It becomes the ratio of. For example, if the periphery of the cutting edge of a carbon steel cutting tool is plated with copper, heat will be diffused from the cutting edge at a rate of 8 times or more. The present invention aims to diffuse the cutting heat of the cutting edge and suppress the temperature rise of the cutting edge by plating the periphery of the cutting edge of the cutting tool with a material having a high heat transfer coefficient such as copper, silver, gold, and aluminum. Is.

[0005]

EXAMPLE FIG. 1 is a view in which the cutting edge of a cutting tool is plated with copper. At the time of plating, the cutting edge is fully plated, and at the time of cutting with a cutting tool, the plating is removed by the object to be cut (Fig. 2), so that the plating layer is extended to the edge of the cutting edge and the cutting heat generated at the cutting edge It is intended to quickly spread the temperature and suppress the temperature rise of the cutting edge. Figure 3
It is a diagram in which plating is applied in advance so that the cutting edge is not plated. From the viewpoint of heat dissipation, it is preferable to perform plating as close to the cutting edge as possible, and it is also preferable that the thickness of the plating has a certain thickness.

[0006]

EFFECTS OF THE INVENTION By plating the temperature of the cutting edge with a material having high thermal conductivity, the diffusion speed of heat from the cutting edge is accelerated and the rise in temperature is suppressed, thus prolonging the cutting edge life and maintaining cutting force. Product accuracy can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view of a cutting edge of an embodiment showing a state where a cutting edge of a cutting tool is plated with copper.

FIG. 2 is a sectional view of a cutting edge during cutting, in which metal is cut with the cutting tool of FIG. 1 and a part of a plating layer is removed by an object to be cut.

FIG. 3 is a sectional view of the cutting edge of one embodiment showing a state where copper is plated, leaving the tip of the cutting edge of the cutting tool.

[Explanation of symbols]

1 blade edge, 2 blade body, 3 plating layer, 4
Workpiece, 5 Kiriko 6 Plating layer cut by the work,

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI technical display location B27G 13/00 Z 7234-3C

Claims (1)

[Claims] 1. By plating the periphery of the cutting edge of a cutting tool with a material having a high heat transfer coefficient, such as copper, silver or aluminum,
Cutting heat diffusion method from the cutting edge, characterized in that the cutting heat of the cutting edge is diffused to suppress the temperature rise of the cutting edge.