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BQUQ 针翅精密加工散热器系列 | 20年CNC经验

本系列产品优势:紧密翅片、平整基座、快速交付 这是工厂直供的针翅散热器系列,采用五轴CNC加工中心制造。基座平面度达0.02 mm,针间位置公差±0.01 mm,所有配合面表面粗糙度Ra 0.8 µm。原型交期通常为15天,批量生产为25天——比大多数美国本土工厂更快,因为我们全程内部掌控工艺。 每件产品均由实心棒料加工而成,非挤压或铲削成型。这意味着没有材料晶粒限制、无脱模斜度约束、也无最小壁厚


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本系列产品优势:紧密翅片、平整基座、快速交付

这是工厂直供的针翅散热器系列,采用五轴CNC加工中心制造。基座平面度达0.02 mm,针间位置公差±0.01 mm,所有配合面表面粗糙度Ra 0.8 µm。原型交期通常为15天,批量生产为25天——比大多数美国本土工厂更快,因为我们全程内部掌控工艺。

每件产品均由实心棒料加工而成,非挤压或铲削成型。这意味着没有材料晶粒限制、无脱模斜度约束、也无最小壁厚要求。如果您需要0.5 mm直径、长径比6:1的针翅,我们能干净利落地加工。如果您需要300 mm长、带200片翅片的基座,我们也能保证其平直度。

精密制造在这里不是口号,而是可量化的产出:关键尺寸Cpk ≥ 1.33,每批次均经验证。

为何实心加工优于铲削或挤压针翅

铲削翅片易弯曲。挤压翅片高度受限且总带脱模斜度。两者都无法达到高耗散IGBT模块或激光二极管所需的翅片密度。我们的针翅精密加工散热器系列从实心铝或铜块中去除材料。结果:翅片薄至0.3 mm,间隙窄至0.5 mm,翅片高度可达80 mm且无锥度。

由于从实心材料加工,我们还能在同一坯料中集成安装凸台、螺纹孔和流体通道。您无需再进行二次焊接或钎焊操作。与组装式设计相比,这可将界面热阻降低15–20%。

本系列使用的材料与热处理

我们常备四种主要合金:AL6061-T6、AL6063-T5、AL1050(用于最大导热率)和C11000铜。对于AL6061-T6,我们保证硬度95 HB。对于铜,保证80 HRF。如果您需要可钎焊的镀镍铜基座,我们按ASTM B733标准施加3–5 µm化学镀镍。

热处理在距工厂2公里的合作炉中进行。我们在520°C固溶处理,水淬,再在175°C时效8小时。每批次随附材质证明书,列明实际硬度和导热率数值。您无需猜测所获材料的性能。

如何在高层针阵列上保持0.01 mm跳动

跳动是针翅加工中的关键难题。40 mm高的针翅若刀具路径不当便会振动。我们采用粗加工与精加工两步策略。首先,6 mm硬质合金立铣刀以12,000 RPM转速、5 mm切深去除70%材料。然后,2 mm精加工刀具以18,000 RPM转速、每齿0.02 mm进给量进行0.15 mm径向切削。

这种方法将切削力减半,防止刀具偏摆。结果是针尖在全高范围内跳动≤ 0.01 mm。我们使用蔡司三坐标测量机配合扫描测头进行验证,而非千分表。若想了解更多刀具选择逻辑,请阅读我们的CNC刀具选择指南——其中解释了为何我们尽可能避免使用长悬伸刀具。

每批出货前检测:三坐标、气动量仪和泄漏测试

本系列每件散热器均通过三项检查。首先,蔡司三坐标测量机扫描20个关键点:基座平面度、针尖位置和孔径。其次,气动量仪测量基座表面粗糙度——若Ra超过0.8 µm,则重新加工。第三,若您的设计包含密封冷板腔体,我们进行0.5 MPa氦气泄漏测试。

没有加盖检验章的报告,我们不会出货任何一件产品。报告包含彩色编码的三坐标测量图,显示每个测量点与标称值的偏差。您可将该报告与自己的来料质检进行比对。我们还保留原始数据3年,若发生现场失效,可追溯至具体机床、刀具和操作班组。

交期、起订量及我们如何超越30天行业标准

针翅精密加工散热器系列的标准交期为:1–10件15天,11–500件25天。我们能做到这一点,是因为我们运行22台CNC机床,每天18小时,配备自动交换工作台。我们不会等您的订单才开始加工——我们预先采购常用规格的AL6061-T6和C11000棒料(100×100×50 mm、150×150×60 mm、250×200×80 mm)。

无起订量。可订购一件原型或一千件批量。单件价格在超过100件时约下降30%,但设置成本保持不变。如需更快,我们可提供7天加急报价,额外收取25%附加费,前提是几何形状在我们标准刀具库范围内。

规格表:针翅精密加工散热器系列

参数数值/范围
可用材料AL6061-T6、AL6063-T5、AL1050、C11000铜
标准坯料尺寸最大400 × 300 × 100 mm
针径范围0.5 mm – 8.0 mm
针高范围2 mm – 80 mm
针间位置公差±0.01 mm
基座平面度(100 mm长度内)0.02 mm
跳动(针尖对基座基准)≤ 0.01 mm
表面粗糙度(基座配合面)Ra 0.8 µm
硬度(AL6061-T6)95 HB min
硬度(C11000铜)80 HRF min
导热率(AL6061-T6)167 W/m·K
导热率(C11000)391 W/m·K
原型交期(1–10件)15天
生产交期(11–500件)25天
起订量无起订量(接受1件)

常见问题:针翅精密加工散热器系列

原型样品有最低起订量要求吗?

没有——我们接受针翅精密加工散热器系列的单件订单,无起订量,您可在批量投入前验证您的热仿真。

能否加工非标准方形网格的定制针阵列?

可以,我们支持径向排列、交错排布、变高度针翅和非对称布局,只要针间最小间隙为0.5 mm且刀具可触及基座。

每批出货附带哪些质量控制文件?

每批出货均包含三坐标检测报告、材料材质证明书、硬度测试结果和表面粗糙度读数,全部可追溯至具体批次号。

定制设计多久能获得确定报价?

发送STEP或IGES文件,我们在12小时内返回确定报价,包括刀具成本、单价和交期——无隐藏费用。

避免加工陷阱的设计规则

在发送图纸前,请检查三点。首先,保持针高径比低于10:1。超过此值,我们需要不同的刀具路径,成本上升40%。其次,避免针基座处出现尖锐内角——0.2 mm圆角足以防止应力集中。第三,若需在针间加工螺纹孔,孔中心距最近针边缘至少保持2.5 mm。

若对几何形状不确定,我们的工程师将在24小时内提出修改建议。过去五年中我们已见过500种散热器设计。我们清楚什么能在CNC主轴上加工、什么不能。如需深入了解我们如何解读您的公差累积,请参阅我们的CNC加工公差指南——其中涵盖我们车间实际使用的GD&T符号。

12小时内获取确定报价

将您的图纸以STEP、IGES或PDF格式发送给我们。我们将在12小时内回复确定价格、交期以及列出潜在问题的DFM报告。无起订量,无义务。精密制造是我们的核心,我们自豪地成为追求可重复质量工程师的中国制造合作伙伴。

邮箱:sc@bquq.com
WhatsApp:+86 13713157787
今天就发送您的图纸——我们将在您喝咖啡时开始报价。


相关产品

参数

参数能力
材料AL6063/6061/5052,纯铜C1100,铜铝复合
工艺挤压、CNC加工、铲齿、锻造、压铸、冲压翅片
翅片类型挤压翅片、针翅、铲齿翅片、折叠翅片、粘合翅片、热管、均温板
表面处理黑色阳极氧化、本色阳极氧化、镀镍、粉末喷涂
尺寸范围最大1500 x 400 x 300 mm
热测试每批次提供热阻和散热数据
打样5-7天,样品无最小起订量
检验三坐标测量仪、热阻测试仪,每批次提供完整报告

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