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BQUQ CNC加工涡轮增压器零件 | 中国精密制造

这些是CNC加工涡轮增压器零件——包括轴、压气机叶轮、涡轮壳体和废气门杠杆,均在我们东莞工厂的五轴CNC车床和加工中心上生产。我们提供0.005毫米的位置公差、轴承轴颈0.008毫米的总指示跳动,以及热处理后最高45 HRC的硬度,原型交期标准为14天,批量生产为21天。 为什么轴承轴颈跳动必须控制在0.008毫米以内 在涡轮增压器中,轴以150,000至250,000 RPM的转速旋转


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这些是CNC加工涡轮增压器零件——包括轴、压气机叶轮、涡轮壳体和废气门杠杆,均在我们东莞工厂的五轴CNC车床和加工中心上生产。我们提供0.005毫米的位置公差、轴承轴颈0.008毫米的总指示跳动,以及热处理后最高45 HRC的硬度,原型交期标准为14天,批量生产为21天。

为什么轴承轴颈跳动必须控制在0.008毫米以内

在涡轮增压器中,轴以150,000至250,000 RPM的转速旋转。轴承轴颈上任何超过0.008毫米的跳动都会产生谐波振动,导致浮动环轴承在200小时内磨损。我们在硬车削后使用CNC外圆磨床磨削这些轴颈,并通过Talyrond圆度仪进行验证。过去500批已发货产品的平均跳动记录为0.006毫米——这比大多数客户提供的OEM规格高出25%的精度。

我们用于涡轮轴的材料和热处理工艺

我们使用Inconel 713C、Inconel 718或42CrMo4钢加工涡轮轴。对于压气机叶轮,我们使用锻造铝2618A或7075-T6。Inconel零件经过980°C固溶退火,然后时效硬化以达到45 HRC。钢轴经过真空渗碳处理,渗碳层深度为0.5毫米,随后回火至40–45 HRC。对于高速部件,我们从不跳过深冷处理步骤——它可消除残余奥氏体,并在−40°C至+650°C的完整工作温度范围内稳定尺寸。

五轴加工与三轴加工:我们如何切削压气机叶轮叶片

压气机叶轮具有薄而扭曲的叶片,三轴铣床无法在不留下刀具痕迹的情况下加工到位。我们使用配备20,000 RPM主轴和定制球头立铣刀的DMG MORI五轴加工中心。叶片型面通过单次顺铣走刀完成精加工,实现Ra 0.4 µm的表面光洁度。我们还采用摆线刀具路径来减少薄叶片边缘上的切削力——这可以防止会改变气动型面的变形。有关刀具选择的完整概述,请阅读我们的CNC切削刀具选择指南

发货前的平衡和动态测试

每个涡轮增压器轴和压气机叶轮组件均按ISO 1940 G2.5等级进行动平衡。这意味着每公斤转子质量的残余不平衡量小于0.25 g·mm。我们使用带硬支承结构的Schenck平衡机。如果零件不合格,我们通过在平衡面上钻小孔进行修正——绝不在叶片表面钻孔。每个零件都附带打印有序列号的平衡报告。我们还会对每根Inconel轴进行最高额定转速110%的高速旋转测试,并在数据记录仪上记录振动幅度。

每次发货前的检测:三坐标测量机和气动量仪

我们使用测量不确定度为0.002毫米的Zeiss三坐标测量机对100%的关键尺寸进行检测。对于轴承轴颈直径,我们使用分辨率为0.0005毫米的气动量仪。表面粗糙度使用Mitutoyo SJ-410轮廓仪在每个叶片上三个点进行检测。硬度使用洛氏硬度计在来自同一热处理批次的试样上进行验证。我们还提供来自钢材供应商的材料证书(EN 10204 3.1)。如果您想确切了解我们能够保持的公差范围,请参阅我们的CNC加工公差指南

交期和无最小起订量:原型14天,批量生产21天

我们在东莞仓库中常备锻造Inconel 718和2618A铝毛坯库存。这意味着单个原型轴可在14天内发货。对于100至5,000件的批量订单,交期为21天。我们实行无最小起订量政策——您可以订购一件或一千件。我们的最低订单金额为零美元。我们只需要一张图纸或3D STEP文件即可开始。这是我们精密制造方法的一部分:在您承诺大批量之前,我们先在您的零件上测试工艺。

参数数值/范围
材料Inconel 713C、Inconel 718、42CrMo4、2618A铝、7075-T6
最大零件尺寸Ø 300毫米 × 400毫米长度
硬度(热处理后)40–45 HRC(钢/Inconel),130 HB(铝)
位置公差±0.005毫米
轴承轴颈跳动0.008毫米 TIR(典型0.006毫米)
表面光洁度Ra 0.4 µm(叶片),Ra 0.2 µm(轴颈)
平衡等级ISO 1940 G2.5
交期(原型)14天
交期(批量生产)21天
最小起订量无最小起订量(接受1件)
检测设备Zeiss三坐标测量机、气动量仪、Talyrond、Schenck平衡机

CNC加工涡轮增压器零件的最小起订量是多少?

无最小起订量——我们接受单个原型件来验证您的设计,然后再进行批量生产。

你们可以定制叶片型面或轴承轴颈尺寸吗?

可以,我们完全根据您的3D模型或2D图纸进行加工——任何型面更改均可免费实施,无需重新设计工装。

你们如何确保高转速涡轮零件的质量?

每个零件在发货前都经过三坐标测量机检测、G2.5级动平衡以及110%超速旋转测试。

加急订单的实际交期是多少?

对于采用标准热处理的单个Inconel轴原型,如果您在24小时内确认图纸,我们可以在10天内发货。

立即发送您的图纸,12小时内获得正式报价。请发送邮件至sc@bquq.com或通过WhatsApp联系我们:+86 13713157787。我们是位于中国东莞的精密制造合作伙伴——使用德国和日本检测设备,在中国制造。


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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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