R=0, θ=90°)( m) X! p! T: V5 x# i% A" DL=A+B+K" M) b. ~# }/ ?$ B) ~
1. 當(dāng)0¢T£0.3時(shí), K=0
2. 對(duì)于鐵材
如GI,SGCC,SECC,CRS,SPTE, SUS等)a.6 ^* L! K9 \; [+ a# h: y
當(dāng)0.3¢T¢1.5時(shí), K=0.4T
b. 當(dāng)1.5£T¢2.5時(shí), K=0.35T; k+ K$ j1 V7 c5 t1 I5 O2 E- ~
c. 當(dāng) T/2.5時(shí), K=0.3T2 x6 Y( k+ F6 D6 Y* x0 ]
3. 對(duì)于其它有色金屬材料如AL,CU:
當(dāng) T$0.3時(shí),8 v: X+ {3 Y- ?1 a4 a0 Z/ Q. I
K=0.5T
注: R£2.0時(shí), 按R=0處理.' a% u$ R2 A( x$ e: N! Y" w; d
=966mm.根據(jù)實(shí)際加工經(jīng)驗(yàn).L=997.6±左右.5 z9 c* j3 m/ Y6 Q! ^+ n! r