请用PROE软件做钣金设计的朋友回答

sangewain

已知条件：1.图中的3.5/1.75/5.25就是PROE中钣金展平的DEVL值.
                  2.这三个数的关系：1.75是3.5的一半，5.25是3.5的1.5倍.
                  3.三个图两边都是折50长的边，一个90度一个135度一个45度.折弯系数统一为2.5MM.
                  4.三个图中的展开图都是我用自己的折弯表在PROE中展开的，还标出了软件计算出来的展开长度


我的问题：1.按理软件算出来的展开长度应该依次为97.5/98.75/96.25   为什么第2和第3的会是图中标出来的数啊.

sangewain

这是我的折弯表
!# Pro/TABLE
!#
! [] S 92;
! [] W  8;
![A] W 10;
![B] W 10;
"!"
"!     90度折弯 - 需要原料的直线长度(L)"
"!"
"! 对于表范围以外的R和T，使用下列值，"
"!"
"FORMULA" "L=3.14*R+3.14*T/2"
"!"
"CONVERSION" "L=2*R+A"
"! 该表可用于以下材料"
"START MATERIALS"
"END MATERIALS"
"!"
"TABLE"
"!                            内侧  半径(R)"
" " 0.000000 0.200000 0.800000 1.000000 1.200000 1.500000 2.000000 2.500000 3.000000 3.500000 4.000000 5.000000
"!厚度  (T)"
0.800000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000  
1.000000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000 0.300000  
1.200000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000 0.400000
1.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000 0.500000  
2.000000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000 0.700000
2.500000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000 0.880000  
3.000000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000 1.050000  
3.500000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000 1.250000  
4.000000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000 1.400000

sangewain

没人回答了

wyj

不会，帮顶{:soso_e181:}

igxoqve

你的非90度的公式错了，不管怎么样，你要把这个公式给破衣能算出他的中性层的长度来，明白不

sangewain

不明白啊，大哥我错在哪儿了

cowboy110

楼主研究下下面的折弯系数表吧   
!# Pro/TABLE
!#
! [] S 92;
! [] W  8;
![A] W 10;
![B] W 10;
"!"
"!     90-Degree Bends - Required Straight Length of Stock (L)"
"!"
"! For Values of T and R outside the table range use the following,"
"!"
"FORMULA"
"IF (R>=0.25 & ANGLE==180)"
"        IF (T<1.5)"
"                L = (0.5*T+R)*ANGLE*PI/180"
"        ELSE"
"                L = (0.4*T+R)*ANGLE*PI/180"
"        ENDIF"
"ENDIF"
"IF (R<0.25 & ANGLE==180)"
"        IF (T<=0.3)"
"                L = 2*(R+T)"
"        ENDIF"
"        IF (T>0.3 & T<1.5)"
"                L = 2*R+1.6*T"
"        ENDIF"
"        IF (T>=1.5 & T<2.5)"
"                L = 2*R+1.65*T"
"        ENDIF"
"        IF (T>=2.5)"
"                L = 2*R+1.7*T"
"        ENDIF"
"ENDIF"
"IF (ANGLE<180)"
"        IF (R>3)"
"                IF (T<1.5)"
"                        L = (0.5*T+R)*ANGLE*PI/180"
"                ELSE"
"                        L = (0.4*T+R)*ANGLE*PI/180"
"                ENDIF"
"        ENDIF"
"        IF (R>2 & R<3)"
"                IF (T<1.5)"
"                        L = (0.5*T+3)*ANGLE*PI/180-2*(3-R)*TAN(ANGLE/2)"
"                ELSE"
"                        L = (0.4*T+3)*ANGLE*PI/180-2*(3-R)*TAN(ANGLE/2)"
"                ENDIF"
"        ENDIF"
"        IF (R<=2)"
"                IF (T<=0.3)"
"                        IF (ANGLE<=150)"
"                                L = 2*R*TAN(ANGLE/2)"
"                        ENDIF"
"                        IF (ANGLE>150)"
"                                L = (0.5*T+R)*ANGLE*PI/180"
"                        ENDIF"
"                ENDIF"
"                IF (T>0.3 & T<1.5)"
"                        L = 0.4*T*ANGLE/90+2*R*TAN(ANGLE/2)"
"                ENDIF"
"                IF (T>=1.5 & T<2.5)"
"                        L = 0.35*T*ANGLE/90+2*R*TAN(ANGLE/2)"
"                ENDIF"
"                IF (T>=2.5)"
"                        L = 0.3*T*ANGLE/90+2*R*TAN(ANGLE/2)"
"                ENDIF"
"        ENDIF"
"ENDIF"
"END FORMULA"
"!"
"! This table is valid for the following materials"
"START MATERIALS"
"GI"
"SGCC"
"SECC"
"CRS"
"SPTE"
"SUS"
"END MATERIALS"
"!"
"TABLE"
"!                            INSIDE  RADIUS (R)"
" " 0
"!THICKNESS  (T)"
100 0