Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for extruding and precisive roller forging thermal strength titanium alloy blades

A titanium alloy, hot extrusion technology, applied in metal rolling, mechanical equipment, engine components, etc., can solve the problems of precision roll forging technology that has not yet achieved breakthroughs, high deformation resistance, low plasticity, etc., to achieve low hydrogen content, Effect of protective lubricating coating, good combination of properties and organization

Inactive Publication Date: 2006-03-22
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Beginning in 1974, the present inventor carried out the research of titanium alloy roll forging process, and successfully cold roll forged TC3 titanium alloy blade without margin in 1981, but heat-strength titanium alloy, due to its low plasticity in cold state, The high deformation resistance and the unique O and N pollution embrittlement problems different from other alloys in the hot state have not made a breakthrough in precision roll forging technology at home and abroad.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] Example 1, choose TC11, Φ28 titanium alloy hot-rolled rods as raw materials (produced by Shanghai No. β Insulate at -50°C±10°C for 20 minutes, and flatten it into a flat material of 13×45mm on a press, then pass through a caustic soda and sodium nitrate mixed molten alkali tank, hold at 490°C±10°C for 30 minutes, and water quench the alkali Chipping to remove the glass lubricant and sand blasting, and then use a milling machine to cut the material one by one along the transverse fiber direction, and grind off the oxygen-enriched layer on both sides of the surface. Above-mentioned blank is sprayed with FR6 (market sale) glass lubricant, and heating temperature is T β -30℃±10℃, keep warm for 15min, and preheat the mold to 150℃ at the same time, choose Bd for the mold 2 Aqueous low temperature glass lubricant. The billet is placed in the mold, and is extruded once with a 2T-M liquid steam hammer. Extruded blades are polished, alkali collapsed and sand blasted to remove ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
strengthaaaaaaaaaa
Login to View More

Abstract

A technology for manufacuring Ti-alloy blade of air compressor by thermal sequence and precise forging includes such steps as blanking, coating glass lubricant, thermal squeezing, grinding for removing glass lubricant, chemical milling for removing polluted layer, vacuum recrystallizing, annealing, machining cog and arc corner hot forging removing glass lubricant and polluted layer again, vacuum dehydrogenating recrystallizing, annealing, calibrating, annealing and precise machining. Its advantages are simple process, low cost and high performance of product.

Description

technical field [0001] The invention relates to a precision forging method of alloy blades, in particular to a precision roll forging process for titanium alloy blades, in particular to a precision roll forging process suitable for heat-strength titanium alloy blades. Background technique [0002] Blade production is a very important part of the aero-engine manufacturing industry, and the level of blade manufacturing technology reflects the level of engine manufacturing technology to a certain extent. Since the aero-engine blade is a complex-shaped part with a curved surface in space, it is often necessary to use profiling milling or electrolysis and other processing technologies in the processing process. The performance of modern engines requires higher and higher alloying of blade materials, so the processing difficulty is becoming more and more difficult. Therefore, in some developed countries, even if the precision forging process is very expensive, blade manufacturing...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B21K3/04C23F1/26B21H7/16B23P15/02C22F1/18
CPCC23F1/26
Inventor 吴自然杨景金刘秋生孙永昌张叶盛郝树本胡蔚兰
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION