A circular blade applied to ultrasonic machining and its design method

A design method and technology of round inserts, which are applied to tools for lathes, metal processing equipment, milling cutters, etc., can solve the problems of poor processing quality, high cutting temperature of the tool body, and low processing efficiency, and are easy to reflect and realize. , The effect of high surface processing quality and improved processing efficiency

Inactive Publication Date: 2016-04-27
杭州辉昂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, it is found that when the diamond saw blade cuts composite materials, the fracture of the saw blade is severely fluffed, and a large amount of heat is generated, and the vibration is severe; when the spiral milling cutter is used to cut composite materials, the requirements for the machine tool are high and the price is expensive, which is not suitable for batch processing. product
[0007] At present, when the existing round inserts are applied to ultrasonic machining of composite materials, whistling and instantaneous fracture often occur during use, endangering personal safety and causing workpiece scrapping, and the cutting temperature of the cutter body is high, the processing efficiency is low, and the processing quality is poor.

Method used

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  • A circular blade applied to ultrasonic machining and its design method
  • A circular blade applied to ultrasonic machining and its design method
  • A circular blade applied to ultrasonic machining and its design method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The resonant frequency of the ultrasonic vibration processing system is 20kHz, the diameter of the circular blade is D=52mm, the thickness of the circular blade is h=1.4mm, and the rake angle θ=14゜ of the circular blade rake angle 4 is a circular knife. The material of the tool is tool steel, and the material of the circular blade is The heat treatment should meet the work reliability requirements, and it can work normally within the specified cutting time without abnormal fracture. Elastic modulus E=2e11Pa, Poisson's ratio μ=0.3, density ρ=7800Kg / m 3 , you can get a radially grooved circular blade, the structure shows Figure 4 . The specific steps of slot design are as follows.

[0054] (1) Calculate the resonant frequency of a circular blade with a diameter of 52mm?; establish an ANSYS model for finite element analysis, and calculate the vibration mode of the circular blade.

[0055] In the cylindrical coordinate system, the free lateral vibration differential equat...

Embodiment 2

[0076] The resonant frequency of the ultrasonic vibration processing system is 20kHz, the diameter of the circular blade is D=25mm, the thickness of the circular blade is h=1.4mm, and the rake angle θ=14゜ of the circular blade rake angle 4 is a circular knife. The material of the tool is tool steel, and the material of the circular blade is The heat treatment should meet the work reliability requirements, and it can work normally within the specified cutting time without abnormal fracture. Elastic modulus E=2e11Pa, Poisson's ratio μ=0.3, density ρ=7800Kg / m 3 , you can get radial grooving circular inserts. The specific steps of slot design are as follows.

[0077] (1) Design the structural diagram of a circular blade with a diameter of 25 mm, establish an ANSYS model for finite element analysis, and calculate the vibration mode of the circular blade.

[0078] (2) From the vibration mode, it is determined that the number of nodal lines a distributed in the diameter of the circ...

Embodiment 3

[0087] The resonant frequency of the ultrasonic vibration processing system is 20kHz, the diameter of the circular blade is D=102mm, the thickness of the circular blade is h=9mm, the rake angle θ=18゜ of the circular blade rake angle 4 is a circular knife, the tool material is tool steel, and the elastic modulus E= 2e11Pa, Poisson's ratio μ=0.3, density ρ=7800Kg / m3, you can get circular blades with radial grooves. The specific steps of slot design are as follows.

[0088] (1) Design the structural diagram of the circular blade, establish the ANSYS model for finite element analysis, and calculate the vibration mode of the circular blade.

[0089] (2) From the vibration mode, it is determined that the nodal line a of the circular blade diameter distribution with a small vibration amplitude is 2, such as Figure 5 shown.

[0090] (3) In the vibration mode, there are two pitch circles b distributed on the circumference of the circular blade with relatively small vibration amplitu...

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Abstract

The invention discloses a circular blade applied to ultrasonic machining and a method for designing the circular blade, and belongs to the technical field of ultrasonic cutters and methods for designing the same. Through grooves are radially and uniformly distributed on the circular blade, and the quantity of the through grooves is an even number. The method includes steps of (A), computing the resonance frequency of the circular blade, creating an ANSYS model to perform finite element analysis, and computing a vibration mode of the circular blade; (B), determining pitch lines; and (C), arranging the through grooves at positions where the pitch lines are overlapped with pitch circles if the pitch circles exist, and arranging the through grooves on the pitch lines if the pitch circles do not exist. The circular blade and the method have the advantages that a cutting tip of the circular blade with the radial grooves can realize an excellent ultrasonic vibration effect, accordingly, composite materials can be precisely cut and machined, and the superiority of ultrasonic vibration machining can be embodied and realized easily.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic cutters and design methods thereof, and in particular relates to a circular blade used in ultrasonic machining and a design method thereof. Background technique [0002] Ultrasonic processing method is a new type of processing method gradually developed in the past 40 years. It can not only process hard and brittle metal materials such as cemented carbide, but also be suitable for precision processing and forming of semiconductors and non-conductive non-metallic hard and brittle materials. Processing, with a process effect that cannot be compared with ordinary processing, has a wide range of applications. [0003] Ultrasonic machining tools are usually installed on an ultrasonic machining device, and the workpiece is ultrasonically machined under ultrasonic vibration. Ultrasonic processing devices usually include ultrasonic generators, transducers, horns and cutters. The ultrasonic generator ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B27/08B23C5/08B23P15/30B23P15/34
Inventor 严明刘利群
Owner 杭州辉昂科技有限公司
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