Intelligent screening system based on numerical control processing technology for difficult-to-machine metal

Abstract

The invention discloses an intelligent screening system based on the numerical control processing technology for difficult-to-machine metal, which comprises the following subsystems: a parameter database subsystem, a fixed data source subsystem, an online detection and feedback subsystem, a technology intelligent comprehensive screening optimized scheme system, a data mining and supplementing subsystem, a simulation verification subsystem and an application operating system. The system has the characteristic of recognizing the reasonableness, the advancement and the high efficiency property of each technology scheme in the database, and is used for collecting the processing information of difficult-to-machine metal materials, the machine tool and cutter selection experience and cutting technological parameters accumulated in production practices and experiments. The roughness test data of the optimized cutting technological parameters is selected for processing, so that a reasonable and mature technological scheme is recommended for manufacturing enterprises, and the numerical control processing precision of the difficult-to-machine metal materials is controlled. The purposes of increasing the processing efficiency of the difficult-to-machine materials, reducing processing cost and acquiring high quality products are achieved.

Description

technical field [0001] The invention belongs to numerical control processing equipment, in particular to an intelligent screening system based on the numerical control processing technology of difficult-to-machine metals. Background technique [0002] With the advancement of science and technology and the continuous development of industrial production, the requirements for the performance of mechanical products and their parts are getting higher and higher, and the development momentum of multi-functional and high-functional mechanical products is getting stronger and stronger. Micronization, which requires materials to have a series of excellent physical and mechanical properties such as high hardness, high functionality, high temperature resistance, high thermal strength, ability to withstand complex stress and corrosion resistance, and only difficult-to-machine metal materials, such as titanium alloys, high temperature Alloys, hard alloys, austenitic stainless steels, hi...

AI Technical Summary

Problems solved by technology

[0006] (2) High cutting temperature

The thermal conductivity of difficult-to-machine materials is low, so the thermal conductivity is poor. The large amount of heat generated during cutting is difficult to conduct to the inside of the material, resulting in high temperature in the cutting area, and even serious scratches, burns, cracks and other quality problems on the surface of the workpiece.

[0007] (3) The tool is prone to adhesive wear and diffusion wear

When cutting titanium alloy and other materials, the workpiece material in the cutting area is plastically deformed, and severe adhesive wear occurs between the tool and the workpiece, which makes the tool passivated, thereby reducing the cutting force of the tool. In severe cases, cutting cannot be performed, resulting in aggravated tool wear

At the same time, under the high temperature of cutting, the mutual diffusion between the workpiece material and the tool material elements causes the surface layer to weaken, resulting in diffusion wear and erosion.

[0008] (4) Severe work hardening

Under the action of cutting heat, the chips are easy to chemically react with oxygen, nitrogen and other elements in the air to generate corresponding nitrogen oxides, resulting in an increase in the strength and hardness of the surface layer of the workpiece, a decrease in toughness, and an increase in cutting force, thereby speeding up the cutting tool. wear and tear

[0010] At present, there are few domestic researches on the intelligent screening of difficult-to-machine metal CNC machining technology, and the future market will have a great demand for the application of this material

Images