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BQUQ冲压钣金外壳盖板系列 – 精密CNC与冲压加工

本冲压钣金外壳盖板系列专为需要可重复、平整、无毛刺盖板且不愿等待数周的工程师而设计。每个零件均在伺服驱动冲床上冲压成型,尺寸公差控制在±0.05 mm,关键密封面经表面研磨至Ra 0.8 µm。标准毛坯尺寸交期最快48小时,弹簧回火盖板硬度可达HRC 45——无起订量,中国制造,每批出货附带完整检验报告。 如何控制宽度达600 mm盖板的平整度 大型冲压盖板在冷却和脱模过程中容易翘曲。我们通过三


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本冲压钣金外壳盖板系列专为需要可重复、平整、无毛刺盖板且不愿等待数周的工程师而设计。每个零件均在伺服驱动冲床上冲压成型,尺寸公差控制在±0.05 mm,关键密封面经表面研磨至Ra 0.8 µm。标准毛坯尺寸交期最快48小时,弹簧回火盖板硬度可达HRC 45——无起订量,中国制造,每批出货附带完整检验报告。

如何控制宽度达600 mm盖板的平整度

大型冲压盖板在冷却和脱模过程中容易翘曲。我们通过三步校平工艺解决这一问题:初次冲压,然后进行二次精压(深度控制0.02 mm),最后在厚度超过2.0 mm时进行180°C、2小时的去应力退火。在花岗岩平台上测量,我们的盖板在300 mm长度内平整度保持在0.15 mm以内。对于EMI垫片槽,我们将槽深控制在±0.03 mm——确保垫片均匀压缩,IP等级不受影响。

防止毛刺增长的模具钢等级与硬度

我们不使用普通D2钢进行小批量生产。本系列冲压模具根据材料厚度选用DC53(HRC 60-62)或ASP23粉末钢(HRC 64-66)加工。DC53适用于0.5–1.5 mm不锈钢;ASP23专用于耐磨材料,如301全硬不锈钢或0.8 mm弹簧钢。模具经线切割后真空热处理,每套模具均通过激光验证冲裁间隙——1.0 mm板材单边间隙0.04 mm。这确保在50,000次冲程内毛刺高度低于0.05 mm,无需刃磨模具。

冲压外壳盖板的材料选项

您可从六种基材中选择:5052-H32铝(轻质、耐腐蚀)、304L不锈钢(适用于食品或海洋环境)、301全硬不锈钢(抗回弹)、SPCC冷轧钢(成本最低)、C2680黄铜(用于射频屏蔽)以及0.8 mm 65Mn弹簧钢(用于卡扣式盖板)。铝盖板提供透明阳极氧化(8-12 µm)或黑色阳极氧化(15 µm),符合MIL-A-8625标准。钢盖板提供黄色钝化镀锌(8 µm)或粉末喷涂(60-80 µm),可选任意RAL颜色。

规格参数数值
材料厚度范围0.4 mm – 4.0 mm(304L最大3.0 mm)
最大零件尺寸600 mm x 400 mm(单件)
尺寸公差±0.05 mm(孔和切口),±0.08 mm(折弯至孔)
平整度300 mm长度内0.15 mm
毛刺高度≤ 0.05 mm(目视无毛刺边缘)
表面光洁度(冲压面)Ra 0.8 µm(研磨),Ra 1.6 µm(冲压态)
硬度(回火盖板)HRC 40 – 45(65Mn弹簧钢)
精压深度精度±0.02 mm
交期(已开模零件)毛坯48小时,定制模具5天
起订量无起订量——1件即可打样

让盖板不仅外观合格,更真正贴合密封的二次加工

仅靠冲压无法形成密封外壳。我们增加攻丝孔(M2至M6,螺纹深度通过通止规验证)、PEM压铆螺母(安装位置精度0.05 mm)以及沉头螺钉沉孔(82°或90°,深度公差±0.05 mm)。对于需要防水的盖板,我们在冲压后CNC加工垫片槽——消除模具拉伸圆角,为您提供真正的90°垂直壁面,适配硅胶O型圈。我们还提供激光雕刻徽标或零件编号,笔画宽度0.3 mm,电镀后仍清晰可读。

每批出货前全检——而非仅抽检

本系列每件盖板均经过检验,而非仅首件检验。我们的质检部门使用三坐标测量机(精度±0.002 mm)检测孔位,使用轮廓仪检测边缘轮廓。平整度通过分辨率为0.001 mm的千分表在9点网格上测量。硬度通过便携式里氏硬度计对每批回火盖板进行验证。每批出货均附带完整尺寸报告(PDF)——不额外收费。如任何尺寸偏离您的图纸公差,我们自费返工或报废,绝不转嫁成本。

在最终确定设计之前,请查阅CNC刀具选择指南,了解刀具几何形状如何影响冲压边缘质量,并参阅CNC加工公差指南,了解冲压孔和折弯半径的实际极限。

冲压盖板量产包装与交付

盖板采用防静电托盘包装,每个零件独立槽位分隔,防止表面划伤。数量超过500件时,使用带护角的瓦楞纸箱堆叠包装——无散装零件。我们通过DHL、FedEx或海运(FOB深圳)发货。如需紧急修模,我们内部模具车间可在24小时内完成模具修改。我们拥有120多套标准模具库,涵盖常见盖板形状(矩形、D形切口、U形槽),因此无需模具费用即可打样。

本系列的最低起订量是多少?

无起订量——订购1件测试或10,000件量产均可,价格仅随材料用量调整。

能否定制冲压盖板上的孔型、切口或压花?

可以,我们可修改任何模具几何形状或CNC加工二次特征——定制孔、槽、百叶窗或徽标——模具交期5天。

如何确保薄不锈钢的毛刺-free边缘?

我们使用ASP23模具钢,间隙0.04 mm,并采用二次去毛刺工艺,将边缘倒角控制在最大0.05 mm半径。

从图纸到交付,定制冲压盖板的典型交期是多久?

标准零件48小时内发货;定制模具需5天,加上2天冲压和质检,总计7天送达。

发送您的图纸,12小时内获得正式报价——包括模具费用、单件价格和交期。邮件sc@bquq.com或WhatsApp +86 13713157787。我们在一个工作小时内回复,精通英语和普通话。


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参数

参数能力
材料SPCC、SGCC、SUS301/304/316、黄铜、铜、铍铜、磷青铜
工艺级进模冲压、精冲、深拉深、折弯、攻丝
公差±0.01mm标准,±0.005mm可按要求
表面处理镀锌、镀镍、镀锡、镀金、粉末喷涂、钝化、阳极氧化
模具尺寸最大1200 x 800 mm,16-250吨冲床
厚度0.05 - 6.0 mm板材,线材0.1 - 8.0 mm
打样7-15天模具制作,样品无最小起订量
检测每批次全检报告,CMM和三坐标光学测量

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