重型机械
重型機械
중형궤계
HEAVY MACHINERY
2014年
4期
1-8
,共8页
多向模锻%模锻%锻造%模锻液压机%液压机
多嚮模鍛%模鍛%鍛造%模鍛液壓機%液壓機
다향모단%모단%단조%모단액압궤%액압궤
multiple-ram die forging%die forging%forge%die forging hydraulic machine%hydraulic machine
多向模锻是从两个或更多个方向对包含在可分合模腔内的坯料施加工艺力，使坯料成形的模锻方法。它可一次成形出中空且侧壁带有凸台或多方向枝芽的复杂锻件，锻件形状尺寸更接近零件，材料利用率高，机械加工量少；锻件流线完整，抗应力腐蚀好，疲劳强度高。使锻件更好地满足了机器，电力装备、石油化工装备、航空航天装备、船舶车辆等制造行业和国防建设发展的需求，已成为锻造技术家族中一个有良好发展前景和广泛应用的分支。从上世纪50年代初，美国Cameron公司应用多向模锻技术开始，多向模锻设备和工艺在国内外得到不断地发展。为满足不断增长技术需求，应开发多向穿孔功能和穿孔方向可调多向模锻设备等五方面对当前多向模锻设备和工艺进行改进。
多嚮模鍛是從兩箇或更多箇方嚮對包含在可分閤模腔內的坯料施加工藝力，使坯料成形的模鍛方法。它可一次成形齣中空且側壁帶有凸檯或多方嚮枝芽的複雜鍛件，鍛件形狀呎吋更接近零件，材料利用率高，機械加工量少；鍛件流線完整，抗應力腐蝕好，疲勞彊度高。使鍛件更好地滿足瞭機器，電力裝備、石油化工裝備、航空航天裝備、船舶車輛等製造行業和國防建設髮展的需求，已成為鍛造技術傢族中一箇有良好髮展前景和廣汎應用的分支。從上世紀50年代初，美國Cameron公司應用多嚮模鍛技術開始，多嚮模鍛設備和工藝在國內外得到不斷地髮展。為滿足不斷增長技術需求，應開髮多嚮穿孔功能和穿孔方嚮可調多嚮模鍛設備等五方麵對噹前多嚮模鍛設備和工藝進行改進。
다향모단시종량개혹경다개방향대포함재가분합모강내적배료시가공예력，사배료성형적모단방법。타가일차성형출중공차측벽대유철태혹다방향지아적복잡단건，단건형상척촌경접근령건，재료이용솔고，궤계가공량소；단건류선완정，항응력부식호，피로강도고。사단건경호지만족료궤기，전력장비、석유화공장비、항공항천장비、선박차량등제조행업화국방건설발전적수구，이성위단조기술가족중일개유량호발전전경화엄범응용적분지。종상세기50년대초，미국Cameron공사응용다향모단기술개시，다향모단설비화공예재국내외득도불단지발전。위만족불단증장기술수구，응개발다향천공공능화천공방향가조다향모단설비등오방면대당전다향모단설비화공예진행개진。
The multi-ram forging is a die forging method that can apply loads from two or more directions to forming the billet in the separable die cavity.It can produce a hollow forgings with outside bosses or complex forgings with shoot protruding to different directions.The final shapes and dimensions of the forgings are close to the parts.Therefore higher material utilization rate is achieved,less machining needed.Further,complete in-ternal flow line of the forgings brings good stress erosion resistance and fatigue strength.All these advantages enable forgings produced using multi-ram forging method to better meet the forgings' requirements in different fields such as machinery,electric equipment,petrochemical equipment,aerospace equipment,ship and car manufacturing,national defense.Multi-ram forging has become a promising and widely-used branch in forging technology.Since the beginning of 1950s,the US company Cameron started to use multi-ram forging,multi-ram forging press and process have gained continuous development.To satisfy ever-increasing technical require-ments,five aspects such multi-ram forging presses and technology that can pierce holes in different and change-able directions should be further studied and improved.
