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BQUQ CNC车削精密轴 | 公差±0.005mm,无起订量

这是BQUQ的CNC车削精密轴产品线,BQUQ是一家位于中国东莞、拥有20年历史的工厂。我们将轴的加工公差控制在±0.005mm,圆度0.008mm,表面粗糙度Ra 0.4——热处理后硬度最高可达HRC 58。样品交期通常为3-5天,1000件批量生产交期为7-10天。 我们如何在细长轴上保持0.005mm公差 长轴在车削过程中会发生弯曲,这是导致锥度和椭圆度的主要原因。对于长度超过150mm


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这是BQUQ的CNC车削精密轴产品线,BQUQ是一家位于中国东莞、拥有20年历史的工厂。我们将轴的加工公差控制在±0.005mm,圆度0.008mm,表面粗糙度Ra 0.4——热处理后硬度最高可达HRC 58。样品交期通常为3-5天,1000件批量生产交期为7-10天。

我们如何在细长轴上保持0.005mm公差

长轴在车削过程中会发生弯曲,这是导致锥度和椭圆度的主要原因。对于长度超过150mm的轴,我们全部使用活顶尖和中心架来解决这一问题。我们的CNC车床采用液压卡盘,夹紧力可调——因此不会压碎薄壁部位。对于长径比超过10:1的轴,我们改用两顶尖车削方式。这消除了挠曲变形,并将直线度控制在每300mm长度0.01mm以内。此外,我们还在每个精密批次加工前运行预热循环,以补偿机床主轴的热膨胀。

我们用于轴类零件的材料与热处理

我们常备1045、4140、4340、440C、17-4PH和6061-T6材料用于轴类生产。对于高磨损应用,我们通过感应淬火或整体淬火将硬度提升至HRC 50-58。我们不外包热处理——自有炉子和深冷处理箱让我们能完全控制变形。淬火后,我们通过磨削达到最终公差。如果您需要渗碳淬火轴,我们采用渗碳工艺,深度为0.5-1.5mm。对于食品或医疗领域使用的不锈钢轴,我们在机加工后进行钝化处理,去除游离铁并提高耐腐蚀性。

表面光洁度与硬车削vs.磨削

当几何形状允许时,我们对硬度最高HRC 62的轴采用硬车削工艺。这消除了单独的磨削工序,成本降低30%。使用CBN刀片,我们可直接从车床上获得Ra 0.4的表面光洁度。对于低于Ra 0.2的镜面光洁度,我们改用超硬磨料砂轮进行外圆磨削。我们的标准表面光洁度选项为:一般用途Ra 0.8,轴承座Ra 0.4,液压活塞Ra 0.2。我们还提供滚压加工,以封闭表面孔隙并提高高应力圆角部位的疲劳寿命。

每批出货前全检——不仅仅是抽检

每根轴都进行完整的尺寸检测。我们不采用抽样方式。我们的检测报告包括三个位置的外径、总跳动、圆度和表面粗糙度。我们使用蔡司三坐标测量机检测几何公差,使用泰勒霍普森轮廓仪检测Ra值。对于跳动检测,我们使用V形块和分辨率为0.001mm的千分表。每批产品随附材料证书和由我们的QC工程师签署的尺寸检测报告。如果您需要PPAP Level 3,我们也可以提供——只需在报价阶段告知我们。

CNC车削精密轴的关键规格

参数范围/数值
直径2mm - 200mm
长度5mm - 2000mm
直径公差±0.005mm(磨削),±0.01mm(车削)
跳动(总指示读数)0.008mm
直线度每300mm 0.01mm
表面粗糙度Ra 0.2 - Ra 1.6
硬度HRC 20(退火态)至HRC 58(淬硬态)
材料1045, 4140, 4340, 440C, 17-4PH, 6061-T6
交期3-5天(样品),7-10天(批量生产)
起订量无起订量(接受1件)

为什么我们接受轴类零件无起订量——即使对于研发项目

中国大多数CNC加工厂拒绝接受100件以下的订单。我们不这样做。我们的加工中心专为灵活批量而设置。我们为工程验证生产单件样品,并可扩展至10,000件而无需更换刀具。对于单件轴,您只需支付少量装夹费——但如果您在60天内下达批量订单,我们将免除该费用。这就是我们支持产品开发人员在批量投产前进行测试的方式。无起订量还意味着您可以为旧设备订购替换轴,而无需购买一整年的库存。

出口包装与防锈保护

轴经过磨削且表面清洁——如果没有保护措施,很快就会生锈。我们在包装前使用VCI(气相防锈)纸并浸涂防锈油。每根轴根据长度单独套入泡沫套或放入分隔木箱中。对于空运,我们使用带干燥剂的防潮袋。我们的出口包装经受住了发往欧洲和北美的40英尺集装箱运输,过去5年内没有出现过一次锈蚀索赔。我们在每个箱子上标注您的采购订单号和我们的批次代码,实现完全可追溯性。

CNC车削精密轴的最小起订量是多少?

无起订量——我们接受单件打样,并可扩展至任意批量。

你们能否加工带键槽、螺纹或横孔的轴?

可以,我们在同一台机床上或通过二次CNC铣削增加铣削和钻孔工序,公差与您的图纸要求一致。

你们如何控制大批量轴类订单的质量?

我们采用SPC(统计过程控制),每20件进行在线检测,最终对关键尺寸进行100%全检。

你们轴类生产的标准交期是多少?

样品3-5天发货;500-5,000件的批量生产在图纸确认后7-10天发货。

有关材料选择和刀具建议,请阅读我们的CNC刀具选择指南。要了解我们如何保持严格公差,请参阅我们的CNC加工公差指南。关于我们东莞工厂的可持续发展实践,请查看我们的绿色制造实践

发送您的图纸,12小时内获得正式报价。电子邮件:sc@bquq.com 或WhatsApp +86 13713157787。我们将回复DFM反馈和价格明细——快速、精准、中国制造。


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参数

参数能力范围
材料AL6061/7075, SUS303/304/316, 45#钢, T2铜, H59黄铜, POM, PEEK, 尼龙
公差±0.005mm标准,±0.003mm可按需定制
设备3/4/5轴CNC, 车铣复合, 瑞士型车床
表面处理阳极氧化, 镀镍, 镀锌, 钝化, 喷砂, 抛光
尺寸范围最大400 x 300 x 200 mm
打样72小时,样品无最小起订量
检测每批次提供完整报告,可按需提供CMM数据

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