技术文章

什么是冲压镶件模具,何时需要它?
什么是冲压镶件模具,何时需要它?

冲压镶件模具是一种模块化模具系统,其工作部件——冲头、凹模和成型段——作为独立、可更换的镶件制造,安装到标准母模架中,而非从单一整体钢块上切割加工而成。当您的生产需要大批量冲压复杂几何形状、频繁的设计变更或经济高效的维护时,您就需要这种模具,因为镶件允许您仅更换磨损或损坏的部分,而无需更换整个模具。对于像BQUQ这样拥...

如何为电子散热设计计算散热器尺寸?
如何为电子散热设计计算散热器尺寸?

直接回答:计算散热器尺寸的方法是,先确定从结到环境空气所需的总热阻,然后选择热阻(单位°C/W)等于或低于计算值的散热器。具体来说,所需散热器热阻为 (Tj_max - Ta_max) / P - Rjc - Rcs,其中Tj_max是最高结温,Ta_max是最高环境温度,P是耗散功率,Rjc是结到壳的热阻,Rcs是壳...

什么是CNC原型制作?面向产品设计师的快速原型加工解析
什么是CNC原型制作?面向产品设计师的快速原型加工解析

CNC原型制作是利用计算机数控(CNC)铣削、车削和磨削,直接从CAD文件生产功能性、生产级零件,通常在2至5个工作日内完成。与3D打印不同,CNC原型是从实心金属或塑料块上加工而成,具有与最终生产零件完全相同的材料特性、表面光洁度和尺寸精度,标准公差为±0.005毫米至±0.025毫米。对于产品设计师而言,这意味着在...

CNC加工有多快?常见材料的实际生产速度
CNC加工有多快?常见材料的实际生产速度

CNC加工的实际速度相当快,典型材料去除率范围为:铝每分钟0.5至10立方英寸,钢每分钟0.2至4立方英寸,塑料每分钟0.8至12立方英寸,具体取决于机床刚性和刀具。一台标准三轴CNC铣床可在10至20分钟内生产一个简单的铝制支架,而复杂的钢制模具零件可能需要2至6小时。这些速度转化为的节拍时间比手动加工快3至10倍,...

间距、厚度与高度之间的权衡如何影响散热器翅片性能?
间距、厚度与高度之间的权衡如何影响散热器翅片性能?

最优散热器翅片设计是在最大化对流换热表面积与最小化导热阻力、气流阻塞和制造成本之间寻求折衷。对于典型的强制风冷铝制散热器,最佳平衡点通常为翅片间距1.5毫米至2.5毫米、翅片厚度1.0毫米至1.5毫米、翅片高度15毫米至40毫米,具体取决于气流速度和可用压降。具体而言,在3米/秒气流下,一个高20毫米、厚1.2毫米、间...


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