CAJ | 학술논문

针对实际生产中TC18钛合金模锻件存在的成形难和组织、性能不稳定的问题，对锻件分模面位置和结构进行了调整，并进行实验验证。结果表明，采用顶部分模方式可以大大改善金属的流动性，减少锻造火次，提高生产效率，同时锻件组织较采用中间分模得到的更加均匀，强度和断裂韧性得到了提高，塑性也保持了较高的水平，具有良好的综合性能。
침대실제생산중TC18태합금모단건존재적성형난화조직、성능불은정적문제，대단건분모면위치화결구진행료조정，병진행실험험증。결과표명，채용정부분모방식가이대대개선금속적류동성，감소단조화차，제고생산효솔，동시단건조직교채용중간분모득도적경가균균，강도화단렬인성득도료제고，소성야보지료교고적수평，구유량호적종합성능。
The problems of forming and mechanical property instability for TC 18 titanium alloy forgings have been analyzed in this paper .By adjusting the parting surface position and its structure , and then after testing and verifying , it is found that parting from roof surface can improve the metal flowing state , decrease the forging heats and also increase production efficiency .Moreover, the forging with roof parting surface is found to have more uniform micro-structure with better strength and fracture toughness .The ductility of forging with roof parting surface has remained at a high level , the comprehensive properties is also good .