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CNC加工航空航天壳体 | BQUQ精密制造

这些壳体的用途及为何适合您的组件 CNC加工航空航天壳体是通过铣削加工而成的外壳,用于在紧凑的飞机空间内保护并对齐传感器、陀螺仪、执行器或航空电子板。我们提供±0.005毫米的位置公差、关键孔0.002毫米的跳动度,以及热处理后45 HRC的表面硬度。原型交期通常为7天,批量生产为15天。这是来自东莞一家拥有20年经验的工厂的精密制造,中国制造,无起订量。 我们如何控制孔和导向直径的跳动 跳动会缩


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这些壳体的用途及为何适合您的组件

CNC加工航空航天壳体是通过铣削加工而成的外壳,用于在紧凑的飞机空间内保护并对齐传感器、陀螺仪、执行器或航空电子板。我们提供±0.005毫米的位置公差、关键孔0.002毫米的跳动度,以及热处理后45 HRC的表面硬度。原型交期通常为7天,批量生产为15天。这是来自东莞一家拥有20年经验的工厂的精密制造,中国制造,无起订量。

我们如何控制孔和导向直径的跳动

跳动会缩短轴承寿命。我们在4轴和5轴铣床上通过一次夹紧操作加工所有关键孔,消除重新分度误差。对于直径达80毫米的孔,我们保持0.002毫米的总指示跳动(TIR)。对于较大的壳体,我们使用带液压卡盘的动力刀塔,重复精度在0.001毫米以内。每个孔都经过气动量仪检测,而非仅抽检。

用于飞行关键部件的材料及热处理

我们常备7075-T6铝、6061-T6、17-4 PH不锈钢(H900状态)和钛合金6Al-4V。对于铝壳体,我们在加工前使用T6状态,然后进行硬质阳极氧化,表面硬度相当于60 HRC。对于钢和钛,我们在退火状态下加工,然后热处理至45–50 HRC,如需最终孔几何形状,则使用线切割EDM。我们还提供铝件化学镀镍以提高耐磨性。

符合IPC-A-610和NAS标准的表面处理与去毛刺

标准表面处理为密封面Ra 0.8 µm,轴承轴颈Ra 0.4 µm。我们不留锐边,每个外部边缘都经过0.2毫米圆角或45°倒角处理。内部交叉孔使用柔性珩磨去除微毛刺,防止其在飞行中脱落。我们遵循NAS 3350标准处理边缘和表面缺陷。如需Ra 0.2 µm,我们使用3 µm金刚石研磨膏在研磨机上进行抛光。

规格数值/范围
材料7075-T6、6061-T6、17-4 PH、Ti-6Al-4V
最大零件尺寸600 x 400 x 300毫米(24" x 16" x 12")
最小壁厚0.8毫米(铝)、1.2毫米(钢/钛)
硬度(铝阳极氧化后)60 HRC等效(硬质涂层)
硬度(钢热处理后)45–50 HRC
加工公差±0.005毫米(线性)、±0.01毫米(角度)
跳动(孔TIR)0.002毫米
表面处理(标准)Ra 0.8 µm;密封面Ra 0.4 µm
交期(原型)7天
交期(批量生产)15–20天
起订量无起订量(接受1件)

每次发货前检测:三坐标测量机与气动量仪

没有完整报告,我们不会发货。每个壳体都经过蔡司三坐标测量机检测,分辨率为0.5 µm。我们测量所有关键孔、螺栓孔图案和平面度。跳动通过气动量仪和精密心轴验证。表面粗糙度使用三丰轮廓仪检查。每次发货均附带PDF检测报告。如需按AS9102进行首件检验(FAI),前10件免费提供。

为何这里的“中国制造”意味着更低成本且无公差风险

您并非从外包的作坊采购。BQUQ拥有25台CNC加工中心(发那科和三菱控制系统)。我们位于东莞,距深圳机场90分钟车程。我们的人工成本仅为美国工厂的三分之一,但废品率低于0.5%。我们将此优势传递给客户。一个100毫米 x 100毫米 x 50毫米铝壳体的典型价格为100件时每件38–55美元。相同零件使用17-4 PH材料,价格增加40%。

我们如何处理薄壁和深腔航空航天壳体

薄壁会引起颤振。我们使用24,000转/分主轴的高速加工和摆线刀具路径,将径向切削深度控制在刀具直径的5%以下,与传统铣削相比切削力降低70%。对于深腔(深度大于5倍直径),我们使用变槽立铣刀和每刀0.3毫米的啄铣。我们还设计带真空吸盘的定制夹具,以无变形地固定薄壁部分。如果您的壳体壁厚为0.8毫米,我们可以保持±0.01毫米的平面度。

常见问题:起订量、定制、质检、交期

真的没有起订量吗?

是的,我们接受单件原型制作,但每次操作需支付120美元的一次性设置费;批量生产无起订量,但设置费分摊到单价中。

你们能否根据我的3D模型加工带定制螺纹和镶件的壳体?

可以,我们接受STEP、IGES或X_T格式;我们可为任何标准或定制螺纹(M1.6至M48)添加螺旋螺纹铣削,并可在交付前压配HeliCoil螺纹镶件。

没有现场全职检验员,你们如何保证质量?

我们在加工后24小时内发送三坐标测量机检测视频和尺寸报告;您也可以在最终检测期间要求实时视频通话。

500件7075-T6壳体的实际交期是多少?

对于500件,我们三班倒运行12天,然后2天进行阳极氧化和检测,因此从图纸批准到发货共14天。

12小时内获取固定报价——立即发送您的图纸

无需再为CNC加工航空航天壳体的报价等待数周。将您的图纸(STEP、PDF甚至手绘草图)发送至sc@bquq.com。我们将回复固定价格、公差审核以及如能节省成本的建议材料变更。对于紧急项目,请致电或WhatsApp +86 13713157787。我们12小时内回复,周末亦然。如果您仍在刀具选项间犹豫,请阅读我们的CNC刀具选择指南,了解刀具几何如何影响表面质量。如果您担心多个零件间的公差累积,我们的CNC加工公差指南解释了如何在薄肋上保持±0.005毫米。如需深入了解我们如何降低每件能耗,请参阅我们的可持续精密铣削笔记。立即发送您的图纸。


相关产品

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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