Quick extruding and rolling reduction forming device and method for titanium alloy tube blank

A technology of reducing diameter forming and titanium alloy tubes, which is applied in the direction of metal rolling, metal rolling, metal rolling racks, etc., can solve the problems of low time, economic cost utilization, large material loss and invisible loss, and limit titanium alloy Pipe application and other issues to achieve the effect of improving the overall performance of the product, reducing processing costs and cycles, and facilitating industrial automation and mass production

Active Publication Date: 2020-09-11
SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the preparation process of titanium alloy pipes is basically mature, the production of titanium alloy pipes is difficult, the equipment is complex, the process is cumbersome and lengthy, the yield is low, and each stage has relatively

Method used

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  • Quick extruding and rolling reduction forming device and method for titanium alloy tube blank
  • Quick extruding and rolling reduction forming device and method for titanium alloy tube blank
  • Quick extruding and rolling reduction forming device and method for titanium alloy tube blank

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] The size (diameter×wall thickness) of titanium alloy continuous casting tube billet is Φ88×40mm, and the final product size is required to be Φ86×56mm.

[0059] In order to make the comprehensive performance of the final rolling products meet the requirements of the research objectives, a titanium alloy continuous casting tube billet rapid extrusion and reduction forming device was designed, and the entire process was simulated by the finite element software DEFORM to analyze the feasibility of the technical route provided by the present invention.

[0060] The specific process is as follows:

[0061] The heated continuous casting billet 9 is placed in the sleeve assembly 7, and the continuous casting billet 9 is driven by the left hydraulic assembly 1 to move to the right and enter the first passage surrounded by the sleeve assembly 7, and the skew roll group 8 The second passage surrounded by the mandrel 5 is used to squeeze and reduce the diameter of the continuous c...

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PUM

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Abstract

The invention provides a quick extruding and rolling reduction forming device and method for a titanium alloy tube blank. The device comprises a hydraulic cylinder, a sleeve assembly, a fixed rack, arotary turnplate and a mandrel which are successively arranged in a horizontal direction. By means of reasonable design and arrangement of a roll profile curve of a roller and a mandrel structure, thecross diameter of an oblique roller is decreased from middle to two sides, so that the roller has a certain feeding angle, a relatively large inlet taper angle and a relatively small outlet taper angle. Three oblique rollers fixed to the rotary turnplate are matched with the mandrel, so that an extruding and rolling reduction process of the tube blank is achieved. The device integrates the structural and movable characteristics of oblique rolling perforation, planetary rolling and extrusion, so that the preparation period can be shortened greatly, large plastic deformation of the metal tube blank is achieved, and a complex stress state needed by grain crushing and dynamic recrystallized grain refining is established, and therefore, the comprehensive performance of the tubular product is further improved.

Description

technical field [0001] The invention relates to the technical field of titanium alloy high-efficiency short-flow forming technology, in particular to a device and method for rapid extrusion and reduction of titanium alloy tube blanks. Background technique [0002] Titanium alloys are replacing traditional steel materials due to their high specific strength, corrosion resistance, high temperature resistance, creep resistance, and machinability. The ratio is an important basis for measuring the level of aircraft production in a country. [0003] For the preparation process of titanium alloy seamless pipe, there are mainly two traditional manufacturing processes, which are divided into drilling extrusion and cross rolling perforation. The drilling extrusion process requires drilling the forged titanium alloy billet and extruding it on a larger-tonnage extrusion machine, connecting the pipes and rolling them to prepare pipes of different specifications. The cross-rolling pierc...

Claims

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Application Information

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IPC IPC(8): B21B13/20B21B19/06B21B25/00B21B27/02
CPCB21B19/06B21B27/025B21B13/20B21B25/00
Inventor 常辉于辉孙中刚陈小龙
Owner SHANGI INST FOR ADVANCED MATERIALSNANJING CO LTD
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