当代化工
噹代化工
당대화공
CONTEMPORARY CHEMICAL INDUSTRY
2014年
12期
2483-2485
,共3页
纤维增强树脂基复合材料%搅拌摩擦焊%力学性能
纖維增彊樹脂基複閤材料%攪拌摩抆銲%力學性能
섬유증강수지기복합재료%교반마찰한%역학성능
Fiber reinforced resin matrix composites%Friction stir welding%Mechanical property
利用搅拌摩擦焊实现了纤维增强树脂基复合材料的焊接，获得了焊接接头力学性能并分析了接头形成和断裂机制。结果表明，由于搅拌摩擦焊过程中搅拌针的摩擦剪切及对塑化材料的挤压作用，使树脂基体发生塑化并带动碳纤维迁移形成焊接接头，在搅拌头旋转速度950 r/min，焊接速度38 mm/min时，接头拉伸强度可以达到52.43 MPa，接近母材强度的51%，焊接接头的断裂机制主要为基体剪切断裂和纤维-基体界面脱粘。
利用攪拌摩抆銲實現瞭纖維增彊樹脂基複閤材料的銲接，穫得瞭銲接接頭力學性能併分析瞭接頭形成和斷裂機製。結果錶明，由于攪拌摩抆銲過程中攪拌針的摩抆剪切及對塑化材料的擠壓作用，使樹脂基體髮生塑化併帶動碳纖維遷移形成銲接接頭，在攪拌頭鏇轉速度950 r/min，銲接速度38 mm/min時，接頭拉伸彊度可以達到52.43 MPa，接近母材彊度的51%，銲接接頭的斷裂機製主要為基體剪切斷裂和纖維-基體界麵脫粘。
이용교반마찰한실현료섬유증강수지기복합재료적한접，획득료한접접두역학성능병분석료접두형성화단렬궤제。결과표명，유우교반마찰한과정중교반침적마찰전절급대소화재료적제압작용，사수지기체발생소화병대동탄섬유천이형성한접접두，재교반두선전속도950 r/min，한접속도38 mm/min시，접두랍신강도가이체도52.43 MPa，접근모재강도적51%，한접접두적단렬궤제주요위기체전절단렬화섬유-기체계면탈점。
Fiber reinforced resin matrix composites were welded by friction stir welding process, and the joint formation and fracture mechanism were studied. The results show that well welded joint can be obtained when the resin is fully plasticizing migrated, which is attributed to the extrusion of friction for the friction stir needle and squeezing effect of plasticizing material;Joint strength of 52.43 MPa can be achieved, and approximately 51%of the base material, when the rotational speed is 950 r/min, welding speed is 38mm/min. The micro-fracture mechanism of the joint is the matrix shear fracture and interfacial debonding of fibre and the matrix.
