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CNC加工瑞士型鼻端夹头卡盘导向衬套 钨钢 | BQUQ

这款卡盘为瑞士型车床带来的独特优势 这是一款CNC加工的瑞士型鼻端夹头卡盘导向衬套,由实心钨钢(WC-Co牌号K20/K30)加工而成。它在切削区域刚性夹持棒料,消除高速车削过程中的偏摆和振动。具体优势:总指示跳动(TIR)控制在≤0.003 mm(0.00012英寸),表面粗糙度Ra 0.2 µm,硬度达到90 HRA。这意味着更长的刀具寿命、更严格的零件公差,以及我们东莞工厂15天的标准交期。


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这款卡盘为瑞士型车床带来的独特优势

这是一款CNC加工的瑞士型鼻端夹头卡盘导向衬套,由实心钨钢(WC-Co牌号K20/K30)加工而成。它在切削区域刚性夹持棒料,消除高速车削过程中的偏摆和振动。具体优势:总指示跳动(TIR)控制在≤0.003 mm(0.00012英寸),表面粗糙度Ra 0.2 µm,硬度达到90 HRA。这意味着更长的刀具寿命、更严格的零件公差,以及我们东莞工厂15天的标准交期。

为什么钨钢导向衬套优于淬硬钢

淬硬钢导向衬套在加工304不锈钢或Inconel等磨蚀性材料时,经过40,000–60,000主轴小时后会磨损。钨钢(WC-Co)的耐磨性是淬硬钢的5–8倍。我们的K20/K30牌号密度为14.8 g/cm³,抗弯强度为2,400 MPa。这意味着衬套即使在长时间使用后仍能保持内径几何形状,因此您的夹头卡盘在第5000个零件上仍能保持与第1个零件相同的重复夹持精度。

瑞士型鼻端几何形状:防止喇叭口的夹持轮廓

该卡盘导向衬套的鼻端加工有15°内锥角和0.5 mm入口边缘半径。这种特定轮廓引导棒料进入夹头,不会产生划伤或磨损。我们在Studer S41磨床上一次装夹完成内孔CNC磨削,确保在30 mm衬套全长上圆度达到0.0015 mm,直线度达到0.002 mm。即使在每转0.3 mm的进给速度下,入口处也不会出现喇叭口现象。

硬度与微观结构:90 HRA且无粘结剂损耗

我们的钨钢在1,450°C受控氢气气氛中烧结,然后通过热等静压(HIP)消除内部孔隙。最终硬度为90 HRA(相当于78 HRC)。我们使用维氏硬度计(HV30)对每批产品进行测试,并验证钴粘结剂含量保持在5.5%至6.5%之间。如果粘结剂损耗,衬套鼻端会崩裂。我们通过专有的真空烧结工艺防止这一问题。

参数数值
材料钨钢 WC-Co K20/K30,密度14.8 g/cm³
硬度90 HRA(维氏HV30:1,750 ± 50)
内孔直径范围Ø1.0 mm至Ø32.0 mm,按图纸定制
总指示跳动(TIR)≤0.003 mm(0.00012英寸)
圆度≤0.0015 mm
表面粗糙度(内孔)Ra 0.2 µm(镜面抛光)
30 mm长度上的直线度≤0.002 mm
鼻端锥角15°内锥,±0.1°
标准交期15天(原型7天)
最小起订量无最小起订量 — 接受单件

每次发货前检测:TAFD 3D测试仪测量TIR

我们不会在没有完整检测报告的情况下发货任何导向衬套。每件产品均在分辨率为0.0001 mm的TAFD 3D坐标测量机(CMM)上测量。我们在三个深度(入口、中部、出口)检查内孔直径,通过精密心轴旋转衬套测量TIR,并使用Mitutoyo SJ-410轮廓仪检测表面粗糙度。检测报告在发货后24小时内通过电子邮件发送给您。如果任何尺寸超出您的图纸公差,我们将报废该零件并免费重新加工。

钨钢加工方式:EDM + 金刚石磨削,而非单纯车削

钨钢无法使用标准硬质合金刀片车削——会导致崩刃。我们使用线切割EDM切割外部轮廓,然后进行无心磨削外径和内圆磨削内孔。内孔使用600目金刚石砂轮精加工,随后使用3 µm金刚石研磨膏抛光,达到Ra 0.2 µm。这一两步工艺消除了EDM热影响区的所有微裂纹,因此我们的衬套在200 bar冷却液压力下不会断裂。

定制导向衬套的最小起订量是多少?

无最小起订量 — 我们接受单件原型用于测试,生产价格在10件及以上时生效。

能否定制鼻端锥角或内孔卸荷槽?

可以 — 我们可以修改锥角、半径和卸荷槽,以匹配您的特定瑞士型机床型号(Citizen、Star、Tsugami)或您的零件几何形状;只需发送2D图纸或3D STEP文件即可。

如何保证每批次TIR ≤0.003 mm?

每件衬套均在TAFD CMM上单独测量,我们保留内孔直径的统计过程控制(SPC)图表 — 如果Cpk低于1.33,我们将停止生产并重新修整砂轮。

定制钨钢衬套的实际交期是多少?

原型(1–2件)7天内发货;标准生产(10–100件)在图纸批准后15天内发货,通过DHL或FedEx运输。

为什么工程师选择BQUQ而非本地刀具加工店

我们是中国东莞的一家精密制造工厂,拥有20年CNC加工经验。我们的车间配备12台CNC车床和4台CNC磨床,均带有自动对刀仪和在线测量系统。针对该产品,我们提供12小时内正式报价、免费DFM图纸反馈,以及首件TIR超过0.003 mm时100%退款保证。如果您需要配套组件,我们还可以加工配套的夹头和螺母。

如果您正在为瑞士型车床选择合适的切削刀具,请阅读我们的CNC切削刀具选择指南,以匹配刀具牌号与衬套材料。如需更严格的零件公差,请查看我们的CNC加工公差指南,了解您的下一个项目可实现的范围。

12小时内获取正式报价。将您的图纸(PDF、STEP或DXF)发送至sc@bquq.com,或通过WhatsApp联系我们:+86 13713157787。我们将回复价格、DFM备注和交货日期 — 无任何义务。


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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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