Roll forming integrated technique of high intensity high-hardness alloy and roll forming equipment

Abstract

The invention relates to a roll forging integrated process of high-strength and high-hardness alloy and a piece of roll forging device thereof. The process mainly comprises the following processing steps: a main frame and an eccentric roller arranged on the main frame make an advance and return movement along the axial direction of the blank; the eccentric roller is continuously and repeatedly separated from the blank during the advance and return process, then falls down to forge, and rolls the blank until the processing is completed. The device for roll forging high-strength and high-hardness alloy consists of four parts, namely a feeding device, a main frame, a discharging device and a drive mechanism of the main frame. The process is simple, practical and efficient. The structure of the device is simple and compact. The process can save the material in the processing of the high-strength, high-hardness and refractory alloy materials with more than 200 HB, such as the refractory metal such as tool steel, roll steel, tungsten, molybdenum, tantalum, niobium, and alloy thereof, and titanium alloy, and improves the mechanical property of products.

Description

technical field [0001] The invention relates to the field of integrated rolling and forging process of metal or alloy material and its equipment, especially the integrated rolling and forging process of high strength, high hardness and refractory alloy material and its rolling and forging equipment. Background technique [0002] At present, there are four main processing methods for metal or alloy materials, especially for processing high-strength, high-hardness, and refractory alloy materials into profiles or parts with cross-sectional shapes such as I-shaped, cross-shaped, and square. The first method is to carry out chip processing on the metal blank on the machine tool. Due to the high strength and high hardness of the material, the processing is very difficult and the material waste is serious; Press molding, and then sintering in a high-temperature furnace to make it a metallized structure, but for parts with complex cross-sectional shapes or long lengths, they cannot ...

AI Technical Summary

Problems solved by technology

The first method is to carry out chip processing on the metal blank on the machine tool. Due to the high strength and high hardness of the material, the processing is very difficult and the material waste is serious; Press molding, and then sintering in a high-temperature furnace to make it a metallized structure, but for parts with complex cross-sectional shapes or long lengths, they cannot meet the requirements for use due to sintering deformation and poor mechanical properties; the third method The precision casting method is adopted, but there is a large energy consumption, and it cannot be prepared for refractory metals or alloy materials such as tungsten and molybdenum; the fourth method is to use the method of heating and forging the rods with ordinary circular sections, but there are surface and core defects. Large differences in internal homogeneity lead to poor mechanical properties, affecting the use effect and range of use

[0003] Due to the limitations of the above-mentioned current manufacturing process, it is very difficult to use high-strength, high-hardness, refractory metals or alloys to manufacture special-shaped profiles or parts such as I-shaped, cross-shaped, square, etc., resulting in high cost, poor quality or The serious waste of materials and other defects cannot meet the current use requirements and needs

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