介绍了国外飞机大型锻件的典型锻压工艺。
Representative forging processes of aeronautical large size forgings are introduced.
大型锻件质量的好坏与钢锭的质量密切相关。
The quality of large forgings is closely related with the quality of steel ingots.
夹杂性裂纹是大型锻件致废的主要缺陷形式之一。
The internal cracks originated from inclusions are one of main forms of defects for heavy forgings.
大型锻件的常规生产工艺存在萌生裂纹源的变形机制。
The conventional technologies for heavy forgings tend to generate crack origins.
大型锻件是国家重大技术装备、重大工程建设所必需的重要基础部件。
Large forging is an important basic subassembly which is necessary for many national major technical equipments and projects.
从钢锭的加热、锻造、锻后处理三方面提出控制大型锻件质量的方案。
Quality control of large pieces of forging lies in the manipulating of heating, forging and post-forging treatment of steel ingots.
大型铸铁、铸钢件，钢结构件、大型锻件，热处理件的清砂、除锈去除氧化皮表面清理等。
Sand and rusts removing of large-sized cast iron, cast steel, steel structures, large-sized forging and surface treatment of oxidized work pieces.
本发明的补焊方法，包括以下步骤：首先根据大型锻件的材质成分，制备补焊用保护剂和熔敷金属；
The repair welding method comprises the following steps: firstly, preparing a protectant for repair welding and deposited metals according to material compositions of a large forged piece;
原始钢锭中含有不可避免的凝固缺陷，并且在核电等大型锻件中，其内部微观组织晶粒度是影响其高韧性能的关键因素。
There are many inevitable defects in raw ingots. And the microstructure is the key factor which affects the high ductility of heavy forgings such as in nuclear power plant.
论文采用钢试件高温模拟方法对热加工过程中易引起大型锻件内部探伤超标的孔洞型缺陷、夹杂性裂纹等缺陷的修复规律进行了探讨。
The principle of the internal faults (cavities and cracks originated from inclusion) recovery was investigated in the plastic deformation by using the method of physical modeling at high temperature.
重大型装备制造需要超过单重100t直至300 t的锻件，大锻件生产的限制性环节在于缺乏优质巨型钢锭。
To manufacture the heavy equipments demands more than 100t up to 300t forging a piece, and shortage of quality gigantic ingots is a restrictive link in production of the heavy forgings.
分析了变形方式和变形程度对大型锥环形锻件组织和性能的影响并制定较佳锻造工艺。
The effect of deformation mode and degree on the structure and properties of large conical ring forgings was analyzed. An optimal forging process was drawn up.
为大型框锻件的工艺参数优化，锻后组织控制以及缺陷预测与消除等提供了必要的技术支持。
They provide necessary technical support for the optimization of process parameters and the implement of structure controlling after forging.
本文介绍了振动时效技术在我厂大型轴类锻件、无缝钢管锻件、曲轴锻件及大型焊接件上的应用实例并进行了分析。
This paper introduces and analyses the applied examples of vibratory stress relieving in heavy shaft forging, seamless steel tube forgings... Crankshaft forgings and heavy weldment in our plant.
对带凸台的大型饼类锻件，可采用漏盘镦挤工艺进行生产。
For a heavy forging with bulge, the upsetting-extruding process can be adopted.
探讨了复杂类大型十字轴锻件的锻造成形工艺，该工艺对同类型锻件的成形也有借鉴价值。
Forging technology of complicated large crossing shaft has been probed into, which can be used for reference to forming of similar type of forgings.
介绍了GH36合金大型涡轮盘锻件的生产工艺。
This article has described the manufacturing process of the heavy duty GH36 alloy turbine plate forging.
[18] 张大伟，杨合。大型钛合金整体隔框锻件：局部加载等温成型技术[J]。锻造与冲压，2012（21）：32-38。
(ZHANG D W, YANG H. Large integral bulkhead of titanium alloy forgings: isothermal local loading forming technology [J]. Forging & Pressing, 2012(21):32-38.
本文介绍了严密精确的设计和几何造型方法，可用于大型铸锻件和重型机械的CAD和计算机辅助设计。
This paper has described the rigorous methods of both design and geometric modeling, which can be used in the CAD for heavy casting and forging as well as heavy machinery.
针对大型铝合金件的锻造过程，采用实验与计算机模拟相结合的办法，分别对锻件内部冶金缺陷的变化及其应变场进行了分析。
In large aluminum alloy forgings, the change of inside metallurgical defects and the strain fields have been studied by experimental and numerical simulation.
镦粗变形是大型饼类锻件的主要成形方式，夹杂性缺陷是其主要质量问题。
The upsetting deformation is the main forming mode for heavy disk forgings and the inclusion defects is the main quality issue.
介绍了利用现有设备进行大型及高难度锻件锻造的方法及实例。
The paper introduces the methods and some examples of using now available equipment to forge the big and high-difficulty forging.
后者解决了大型饼类锻件中出现的“夹馅饼”缺陷的难题。
The latter solves the difficult problem of the "meat pie" defects existing in the heavy disk forgings.
前轴是汽车中的大型重要锻件，其生产工艺可归纳为锤上模锻、热模锻压力机上模锻、成形辊锻、精辊-模锻复合工艺等几种类型。
The production process includes hammer die forging, pressure forging, roll forging forming, and precision rolling-die forging composite technology.
利用热处理温度场的计算机模拟软件计算出大型锻钢支承辊锻件差温加热及冷却时的温度场。
The temperature field of a large forged back-up roll during differential heating and cooling was simulated with a computer based finite element method.
未来2 - 3年大型铸锻件的市场规模约在300- 400亿元，重点推荐中国一重和二重重装。
Forging the next 2-3 years the market size of about 300-400 million yuan in China, an important recommendation, and two heavily loaded.
未来2 - 3年大型铸锻件的市场规模约在300- 400亿元，重点推荐中国一重和二重重装。
Forging the next 2-3 years the market size of about 300-400 million yuan in China, an important recommendation, and two heavily loaded.
应用推荐