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精密精冲零件系列 | BQUQ精密制造

精密精冲零件系列 这是一系列通过精冲工艺生产的冲压零件——该工艺在一次冲程中即可获得全剪切、光滑的边缘。您可获得±0.005 mm的公差、低至Ra 0.4 µm的表面光洁度,以及无需二次去毛刺即可保持形状的零件。标准精冲件交期为7天,我们从东莞工厂向全球发货。 为何精冲优于传统冲压——适用于您的关键零件 传统冲压会留下断裂区——粗糙、撕裂的边缘,需要额外的机加工或手工修整。精冲利用第


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精密精冲零件系列

这是一系列通过精冲工艺生产的冲压零件——该工艺在一次冲程中即可获得全剪切、光滑的边缘。您可获得±0.005 mm的公差、低至Ra 0.4 µm的表面光洁度,以及无需二次去毛刺即可保持形状的零件。标准精冲件交期为7天,我们从东莞工厂向全球发货。

为何精冲优于传统冲压——适用于您的关键零件

传统冲压会留下断裂区——粗糙、撕裂的边缘,需要额外的机加工或手工修整。精冲利用第三力(反向压力)和V形环模具抑制断裂。结果是:100%剪切表面,无断裂线,整批尺寸重复性达±0.005 mm。如果您正在设计齿轮板、离合器片或锁止杠杆,这就是零件能完美配合与在10,000次循环后失效之间的区别。

我们内部处理的材料与热处理

我们备有11种材料等级——从低碳钢SPCC到弹簧钢C75S及不锈钢304/316。对于高磨损应用,我们采用真空淬火以达到45–52 HRC(视合金而定),变形量低于0.02 mm。如果您需要特定的屈服强度,我们可以调整回火曲线。所有材料证书均可追溯至钢厂炉号。

可测量的边缘质量与平面度

我们的精冲模具研磨至材料厚度0.5%的间隙(行业典型值为5–10%)。这意味着您的零件边缘是笔直的——而非锥形——模具压痕区仅为0.05 mm(传统冲压为0.3 mm)。平面度在100 mm长度上保持在0.02 mm以内。我们通过三坐标测量机和光学投影仪对每件首件进行验证。

尺寸范围及可精冲的零件类型

我们处理直径从3 mm到250 mm的精冲件,材料厚度从0.5 mm到8 mm。最大冲压力为400吨。常见几何形状:外齿、内花键、凸轮轮廓和椭圆孔。我们还可以在同一模具中增加压印或半冲孔——因此您无需二次工序即可获得成品特征。

每次发货前的检验

每批次均经过3阶段检查:过程检验(每30分钟一次)、首件检验(完整三坐标测量报告)和最终检验(按AQL 2.5抽样)。我们测量关键尺寸至±0.005 mm,使用粗糙度仪测量表面粗糙度,并使用洛氏硬度计测量硬度。您将收到包含所有数据的PDF报告——绝无例外。

参数数值/范围
材料厚度0.5 mm – 8.0 mm
精冲件直径3 mm – 250 mm
尺寸公差±0.005 mm
边缘光洁度(Ra)0.4 µm – 0.8 µm
模具压痕区≤ 0.05 mm
平面度0.02 mm / 100 mm
硬度(可选)45 – 52 HRC
交期(标准)7天
起订量无起订量(接受1件)
冲压能力最高400吨

模具成本及我们如何为原型件降低成本

对于新的精冲零件,模具组费用为$3,000–$8,000,视复杂度而定。但如果您正在测试设计,我们提供软模具原型方案:我们使用线切割加工精冲件外形,然后通过CNC铣削完成——无需硬模具。这样您可在5天内获得5–20件样品,并在投入量产模具前验证配合。这是从CAD到实体零件的最快路径。

为您的二次加工选择合适的切削刀具

许多精冲零件需要一到两项二次工序——攻丝、锪孔或精密钻孔。如果您在内部进行这些工序,请将刀具几何形状与我们的精冲件硬度匹配。对于45 HRC钢材,使用45°螺旋角的硬质合金立铣刀;对于不锈钢,选择TiAlN涂层。请参阅我们的CNC切削刀具选择指南,获取完整的进给量和转速详解。

公差累积:为何我们的±0.005 mm至关重要

如果您将三到四个精冲零件组装成子组件,每个±0.005 mm会累积起来。传统冲压为±0.1 mm——宽松20倍。在4件堆叠中,您的最差间隙为0.4 mm,而我们的为0.02 mm。这就是静音变速箱与异响变速箱之间的区别。如需深入了解公差如何影响配合,请阅读我们的CNC加工公差指南

精冲零件的最小起订量是多少?

无起订量——我们接受1件原型,并可扩展至每年100万件而无需改变工艺。

你们可以定制材料或硬度吗?

可以——我们从钢厂网络采购任何冷轧或退火带材,并调整热处理以满足您指定的HRC。

你们如何保证±0.005 mm公差?

我们对每件首件使用3D三坐标测量机(蔡司)和数字粗糙度仪,并在生产过程中每30分钟进行过程检验。

量产订单的典型交期是多久?

使用现有模具的标准精冲件为7天;如需新模具则为15–20天(包括模具制造和样品确认)。

发送您的图纸,我们将在12小时内提供正式报价。电子邮件sc@bquq.com或WhatsApp +86 13713157787。我们将回复价格、模具成本(如有)和交货日期——绝不提供笼统的交期。


相关产品

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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