CAJ | 학술논문

基于DEFORM-3 D数值模拟软件，针对芯轴拔长的工艺特点，利用数值模拟的方法，分析了锻件在切向和轴向接砧位置的金属变形状态，研究了不同的工艺参数对锻造接砧区域的应力场、应变场的影响。模拟结果表明，合理的接砧角度和接砧量能够使得接砧区域具有良好的应力状态，改善应变的均匀性。研究结果可为核反应堆主管道接管锻造工艺的制定提供理论依据。
기우DEFORM-3 D수치모의연건，침대심축발장적공예특점，이용수치모의적방법，분석료단건재절향화축향접침위치적금속변형상태，연구료불동적공예삼수대단조접침구역적응력장、응변장적영향。모의결과표명，합리적접침각도화접침량능구사득접침구역구유량호적응력상태，개선응변적균균성。연구결과가위핵반응퇴주관도접관단조공예적제정제공이론의거。
Based on the characteristics of mandrel drawing with the software Deform -3 D system , it analyzes the deformation state of anvil's connection area in tangential and axial direction , illustrates the stress field and strain field in anvil's connection area with different process parameters .Simulation result shows that the connection area has good stress state and high deformation uniformity with reasonable connection angle and length of anvil .The research result can provide theoretical basis for the process design of joint pipe used in nuclear power reactor main pipe .