工程塑料应用
工程塑料應用
공정소료응용
ENGINEERING PLASTICS APPLICATION
2013年
9期
55-58
,共4页
长薄壁件%导风板%反翘曲变形%残余应力模型
長薄壁件%導風闆%反翹麯變形%殘餘應力模型
장박벽건%도풍판%반교곡변형%잔여응력모형
long thin-wall plastic part%air deflector%reverse warping deformation%residual stress model
为了降低长薄壁注塑件的翘曲并提高其平整度，提出了反翘曲变形的新方法，并以空调中的导风板为案列，基于残余应力模型，采用CAE模拟对比了在最优成型工艺条件下采用反翘曲变形前后导风板的翘曲结果，并通过实际生产对该方法进行了验证。模拟结果表明，采用反翘曲变形方法后，导风板的翘曲量最大差值由原来的5.37 mm降为0.44 mm。实际生产结果表明，采用反翘曲变形方法后，导风板的实际翘曲量最大差值由原来的4.8 mm降为1.1 mm，满足导风板翘曲量最大差值必须小于2 mm的要求。
為瞭降低長薄壁註塑件的翹麯併提高其平整度，提齣瞭反翹麯變形的新方法，併以空調中的導風闆為案列，基于殘餘應力模型，採用CAE模擬對比瞭在最優成型工藝條件下採用反翹麯變形前後導風闆的翹麯結果，併通過實際生產對該方法進行瞭驗證。模擬結果錶明，採用反翹麯變形方法後，導風闆的翹麯量最大差值由原來的5.37 mm降為0.44 mm。實際生產結果錶明，採用反翹麯變形方法後，導風闆的實際翹麯量最大差值由原來的4.8 mm降為1.1 mm，滿足導風闆翹麯量最大差值必鬚小于2 mm的要求。
위료강저장박벽주소건적교곡병제고기평정도，제출료반교곡변형적신방법，병이공조중적도풍판위안렬，기우잔여응력모형，채용CAE모의대비료재최우성형공예조건하채용반교곡변형전후도풍판적교곡결과，병통과실제생산대해방법진행료험증。모의결과표명，채용반교곡변형방법후，도풍판적교곡량최대차치유원래적5.37 mm강위0.44 mm。실제생산결과표명，채용반교곡변형방법후，도풍판적실제교곡량최대차치유원래적4.8 mm강위1.1 mm，만족도풍판교곡량최대차치필수소우2 mm적요구。
In order to reduce the warpage of lone thin-wall plastic part and improve its flatness,a new method of reverse warpage deformation was proposed. Based on the residual stress model and taking air deflector as object,CAE simulation was carried out to compare the warpage results of the deflector before and after using reverse warping deformation method under the conditions of optimal molding process,then the method was verified by practical production. The simulation results indicate that the warpage maximum difference of the deflector is reduced from 5.37 mm to 0.44 mm after using reverse warping deformation. The practical production results show that when using the new method,the practical warpage maximum difference of the deflector is reduced from 4.8 mm to 1.1 mm which meets the requirement of the warpage maximum difference of air deflector must be smaller than 2 mm.
