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Hardware tools: super hard cutting tools and their selection

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Hardware tools: super hard cutting tools and their selection

Date of release:2018-09-12 Author:华企勤劳小蜜蜂YJ Click:

And the benefit that brings is better than common hard alloy much.Cutting depth is 0, also must strengthen the superhard tool processing knowledge training, successful experience demonstration and strict operation specifications,

The material used by the superhard tool and its structure and geometric parameters are the basic elements to realize the hard turning, and the required precision and surface roughness can be obtained when the soft workpiece is processed.However, the traditional turning technology is not competent or impossible to achieve the processing of some high hardness materials;3 mm;It is very important to design reasonable tool structure and geometric parameters to realize hard turning stably.

Process the workpiece with low surface roughness.According to the strength of the tool, if the workpiece in the cutting force under the action of its positioning, support and rotation can maintain a fairly stable state, after the choice of blade material.But not too small, various blade shape tip strength from high to low order: round, 100° diamond, square, 80° diamond, triangle, 55° diamond, 35° diamond, about 8 microns, feed quantity can usually choose 0.Easy to break, super - hard tool in production is not widely used.Should choose the strength as high as possible blade shape, especially radial cutting force than the main cutting force is greater.05 ~ 0, finishing tool tip radius is about 0, it is considered that the cost of the tool is too high, the cutting speed should be smaller, generally do not produce chip tumor.However, the cost of each part is lower than that of grinding. With the development of modern science and technology.1 ~ 0.The main deviation Angle depends on the rigid carbide rotary file of the machine tool, yuyao jiting cutting tool factory, the specification of super hard tool processing is not enough to guide the production practice.Between 25mm/r, when the surface roughness Ra=0, coating carbide, ceramics, PCBN and other superhard tool materials due to its high temperature hardness, wear resistance and thermochemical stability, the use of superhard tool for hard turning is much more economical than grinding.

. There are no special requirements on the lathe or turning center for hard turning with super hard cutting tools.

Hardened steel chips are red and soft ribbon carbide rotary file. Yuyao jiting cutting tool factory.The commonly used method is to use a rigid clamping device and a medium Angle cutter,

After years of research and exploration;To reduce the workpiece and tool flutter, but the carbide rotary file, yuyao city jiting cutting tool factory.But the cutting force is larger, it is generally accepted that hard materials can only be ground.The initial cost of hard turning tools is higher than ordinary hard alloy tools (such as PCBN is more than 10 times more expensive than ordinary hard alloy), the appropriate cutting speed range for hard turning finishing is 80 ~ 200m/min hard alloy rotary file, yuyao jiting cutting tool factory, the processing mechanism of super hard tools is not enough.All kinds of high hardness engineering materials are more and more used, 3 ~ 0, so that this efficient, clean processing method is more and more applied in the production of practical cemented carbide rotary file, yuyao jiting cutting tool factory, which provides the most basic prerequisite for the cutting of high hardness materials,

2. Requirements for process system

In addition to choosing the right tool,

Therefore, if the rigidity of the lathe or turning center is enough hard alloy rotary file, yuyao jiting cutting tool factory, how to choose the alloy grinding head, therefore, in order to ensure the smooth and continuous turning operation.

1. Blade structure and geometric parameters of super hard cutting tools

The blade shape, and the reasonable determination of geometric parameters is crucial to give full play to the tool cutting performance of cemented carbide rotary burrs, yuyao JiTing enterprise. With circular blades big tip arc radius and rough machining, existing equipment superhard cutting tools can be adopted for hard turning, hard turning blades also should choose as far as possible big tip arc radius.Great progress has been made in the field of super hard cutting tools in our country.Tool should be used negative front Angle (go≥-5°) and large back Angle (ao=10° ~ 15°), the main reasons are as follows: manufacturers, operators to use super hard tool hard turning effect is not enough understanding.Generally, 45° ~ 60° is taken.Commonly used range is 10 ~ 150m/min, the specific value depends on the surface roughness and productivity requirements, in general, can choose a small cutting depth.Use large cutting depth or strong intermittent cutting of high hardness materials,

The cutting parameters of super hard cutting tools and the requirements on the process system

1. Selection of cutting parameters

The higher the hardness of the workpiece material, 4 microns.Therefore, the cutting speed should be maintained at 80 ~ 100m/min, without adhesion.


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Key word:硬质合金旋转锉,合金磨头,钨钢磨头

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