第7章冲模设计常用标准与技术资料7.1冲压常用金属材料的规格和性能冲压常用的金属材料以黑色金属板材为主，此外还有有色金属和其他非金属材料表 7-1至表7- 10列出了常用金属板材的规格和主要性能指标，供设计时选用表7- 1冷轧薄钢板规格 （mm）' 按下列钢板宽度的最小和最大长度称厚度600650700(710)7508008509009501000110012501400(1420)1500160017001800190020000.200.25120013001400140015001500150015001500150015000.300.35250025002500250025002500250030003000300030000.400.450.561200130014001400150015001500150015001500150015000.60250025002500250025002500250030003000300030003500——0.650.70120013001400140015001500150015001500150015001500200020000.75250025002500250025002500250030003000300030003500400040000.801200130014001400150015001500150015001500150015002000200020000.90300030003000300030003000300035003500350035004000400040004000——1.001.11200130014001400150015001500150015001500150015002000200020002000200020001.2300030003000300030003000300035003500350035004000400040004000400042004200————1.31.41.51.61200130014001400150015001500150015001500150015002000200020002000200025001.73000300030003000300030003000300030004000400060006000600060006000600060001.82.02.2120013001400140015001500150015001500150015002000200020002000200025002500250025002.5300030003000300030003000300030003000400040006000600060006000600060006000600060002.8120013001400140015001500150015001500150015002000200020002000200025002500250025003.0300030003000300030003000300030003000400040006000600060006000275027502750275027503.23.53.83.9一2000450020004500200045002000475020002750250027502500270025002700250027004.04.24.5——2000450020004500200045002000450015002500150025001500250015002500150025004.85.0一200045002000450020004500200045001500230015002300150023001500230015002300注:摘自GB/T708-1988.冷轧钢板和钢带的尺寸、外形、重量及允许偏差。
表7-2镀锌钢板的厚度及厚度公差 （mm）材料厚度厚度公差常用钢板的厚度X长度0.250.30 0.35 0.400.45±0.05510x710710x1420750x1500850x1700900x1800900x20000.500.55±0.05710x1420900x18000.600.65±0.06750x1500900x20000.700.75±0.07750x18001000x20000.800.90±0.08850x17001.001.10±0.091.201.251.30±0.11710x1420750x18001.401.50±0.12750x1500850x17001.601.80±0.14900x18001000x20002.00±0.16表7-3冷轧钢板厚度偏差 （mm）标称宽度 厚度允许偏差标称厚度A级精度B级精度W1500>1500—2000<1500>1500—20000. 20—0. 50±0. 04一±0. 05一>0. 50〜0. 65±0. 05一±0. 06一>0. 65〜0. 90±0. 06一±0. 07一>0. 90—1. 10±0. 07±0. 09±0. 09±0. 11>1. 10—1.20±0. 09±0. 10±0. 10±0. 12>1. 20—1.4±0. 10±0. 12±0. 11±0. 14>1. 4—1. 5±0. 11±0. 13±0. 12±0. 15>1.5—1.8±0. 12±0. 14±0. 14±0. 16>1.8 〜2.0±0. 13±0. 15±0. 15±0. 17>2. 0〜2. 5±0. 14±0. 17±0. 16±0. 18>2. 5〜3. 0±0. 16±0. 19±0. 18±0. 20>3. 0〜3. 5±0. 18±0. 20±0. 20±0.21>3. 5〜4. 0±0. 19±0.21±0. 22±0. 24>4.0〜5.0 ±0. 20±0. 22 ±0. 23±0. 25表7-4拉深用钢的力学性能钢种拉深级别Z S和PZSPZSP抗拉强度％/MPa伸长率(%)不小于冷轧钢板热轧钢板O8F275〜365275〜38031323030292708O8A110F275〜390275〜4103230282827251015F295〜410315〜430295〜430315〜4503029292828272727262624241515A120F335〜450335〜47027262526252420253035404550355〜490355〜500390〜540440〜590490〜635510〜650540〜685540〜715262524222024232119181614252423211924222018171513（mm）材料厚度t材料厚度公差钢带厚度宽度公差普通较高切边钢带不切边钢带普通精度较高精度尺寸允许偏差0.05、0.06、0.08-0.020-0.0155、10、...，100,间隔 5—0.3-0.2<50+ 2-10.10、0.155、10、150（间隔 5）、160、 170、 180、 190、2000.20、0.25-0.030-0.0200.30、0.35、0.40-0.040。