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精密冲压平面弹簧系列 | BQUQ 工厂直供

这是 BQUQ 的精密冲压平面弹簧系列,BQUQ 是中国东莞一家拥有 20 年经验的精密制造工厂。您将获得公差为 ±0.01 mm、硬度为 45–52 HRC、表面光洁度为 Ra 0.8 的冲压平面弹簧,标准交期为 10 天。 保持弹力且无疲劳失效的平面弹簧 平面弹簧失效通常是因为材料失去弹性记忆。我们的冲压工艺控制晶粒流向,防止弯曲半径处出现微裂纹。我们对每批产品进行 100% 载荷测试:每


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这是 BQUQ 的精密冲压平面弹簧系列,BQUQ 是中国东莞一家拥有 20 年经验的精密制造工厂。您将获得公差为 ±0.01 mm、硬度为 45–52 HRC、表面光洁度为 Ra 0.8 的冲压平面弹簧,标准交期为 10 天。

保持弹力且无疲劳失效的平面弹簧

平面弹簧失效通常是因为材料失去弹性记忆。我们的冲压工艺控制晶粒流向,防止弯曲半径处出现微裂纹。我们对每批产品进行 100% 载荷测试:每个弹簧必须在全挠度下经过 10,000 次压缩循环后恢复原状。如果出现永久变形,则不会出货。

我们常备的材料牌号及热处理

我们常备 65Mn、SK5、301 不锈钢和铍铜,可按您的宽度分条。对于高循环应用,我们使用 301 全硬不锈钢(最高 480 HV)。对于成本敏感零件,65Mn 经油淬回火可稳定达到 45–52 HRC。铍铜适用于传感器或继电器应用,具有无磁、耐腐蚀的性能。

消除毛刺和边缘圆角的模具设计

我们的硬质合金模具的冲裁间隙设定为材料厚度的 5–8%(每侧)。这能产生干净的剪切区,毛刺小于 0.05 mm。对于关键边缘,我们会增加一道二次研磨工序,使切割面达到 Ra 0.4。这些零件在组装前无需去毛刺。

如何在关键弯曲面上保持 ±0.01 mm 公差

平面弹簧的优劣取决于弯曲角度和接触面的平整度。我们使用带有校准精压工步的级进模,在弯曲线上进行精压,消除回弹变化。然后每 100 件用三坐标测量机检测一次;如果弯曲角度偏差超过 0.5°,我们会停机并重新研磨模具镶件。不做统计猜测——我们直接测量实际零件。

每次发货前的检验:载荷测试和硬度追溯

每批产品随附材料证书和载荷-挠度曲线。我们在每条料带上用洛氏硬度计(HRC)在三个点测试硬度。我们还使用轮廓仪验证表面光洁度,而非目视检查。如果您需要完整的 PPAP 三级文件,我们会在生产前随首件提供。

交期:标准 10 天,原型 5 天

精密冲压平面弹簧系列的标准生产周期为图纸确认后 10 天。对于原型数量(500 件以下),我们使用简化硬质模具,5 天内发货。现有模具的修改需要 3 天。这一速度得益于我们不外包冲压或热处理——全部在 8,000 平方米的工厂内完成。

| 参数 | 数值 | |---|---| | 材料 | 65Mn、SK5、301 不锈钢、铍铜 | | 厚度范围 | 0.05 mm – 3.0 mm | | 宽度范围 | 1.0 mm – 150 mm | | 硬度(65Mn) | 45–52 HRC | | 硬度(301 不锈钢) | 380–480 HV | | 公差(关键尺寸) | ±0.01 mm | | 平面度(去应力后) | ≤0.02 mm / 25 mm 长度 | | 表面光洁度(切割边缘) | Ra 0.8 标准 / Ra 0.4 可选 | | 毛刺高度 | ≤0.05 mm | | 交期(标准) | 10 天 | | 起订量 | 无起订量(1 件起订) |

我们设计规避的常见失效模式:应力集中和氢脆

大多数平面弹簧失效源于尖锐的内圆角。我们将弯曲半径保持在材料厚度的至少 1.5 倍。对于电镀零件,我们在 200°C 下烘烤 4 小时以释放氢脆。如果您从机加工或线切割弹簧切换过来,疲劳寿命会更长,因为冲压保留了材料的晶粒结构。

精密冲压平面弹簧系列的最小起订量是多少?

没有起订量——从 1 件原型到数百万件均可接受,单价仅根据材料厚度和模具复杂度变化。

能否根据我的装配需求定制弹簧刚度或形状?

可以,我们通过修改模具几何形状来满足您的精确力-挠度曲线;请发送您在特定高度下的目标载荷,我们会在开钢前进行模拟。

大批量冲压生产中如何控制质量?

我们每 100 件进行一次尺寸和载荷的过程检验,并在包装前使用三坐标测量机和洛氏硬度计进行最终批次检验。

如果本周需要原型,最快交期是多少?

使用简化硬质模具,我们可以在 5 天内发货原型;对于 1–3 件,如果设计简单,我们有时可以在 48 小时内赶制手工精修样品。

在最终确定材料选择之前,请阅读我们的CNC 刀具选择指南,了解刀具几何形状如何影响冲压边缘。如需一般图纸解读,请参阅CNC 加工公差指南,确认哪些尺寸确实需要 ±0.01 mm。

请发送您的图纸或带有所需弹簧力的粗略草图。我们将在 12 小时内回复正式报价——包括模具费用、单价以及任何风险特征的 DFM 备注。这就是精密制造,中国制造,无起订量,无中间商。

邮箱:sc@bquq.com | WhatsApp:+86 13713157787


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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