复杂精密散热器制造技术研究

Research on the manufacturing technology of complex precision radiators

分析了一种复杂精密散热器的结构特点及制造难点,论述了散热器制造的总体研究思路,提出了散热器总体制造方案,采取了一系列工艺控制措施,有效解决了复杂精密散热器难制造、易变形、难焊接的技术困难。针对散热套精度高、刚性差、易变形等制造难点,提出了弱刚性薄壁散热套多工序统筹精度控制技术,设计了随行内撑胎,有效解决了散热套制造过程的装卡、焊接变形问题,设计了圆弧靠模板,解决了散热套卷板对接处形成直段问题。针对三维空间散热管的成型困难,提出了“由单弯到平面多弯,由平面多弯到三维空间”的两步成型方案,设计了柔性组合弯曲工装,解决了散热管的成型困难。

The structural characteristics and manufacturing difficulties of a complex precision radiator are analyzed,the overall research idea of radiator manufacturing is discussed,the overall manufacturing scheme of radiators is put forward,and a series of process control measures have been adopted to effectively solve the technical difficulties of complex precision radiators that are difficult to manufacture,easily deform and difficult to weld.Aiming at the manufacturing difficulties such as high accuracy,poor rigidity and easy deformation of the heat dissipation sleeve,a multi-process overall precision control technology of the weak rigid thin-walled heat dissipation sleeve is proposed,and the accompanying inner support mould is designed,which effectively solves the problem of clamping and welding deformation in the manufacturing process of the heat dissipation sleeve,designs an arc profile modeling,and solves the problem of forming a straight section at the coil joint of the heat dissipation sleeve.In view of the molding difficulties of three-dimensional space heat dissipation pipe,a two-step molding scheme of"from single bend to plane multi-bend,from plane multi-bend to three-dimensional space structure"is proposed,and flexible combination bending tooling is designed to solve the molding difficulties of heat dissipation pipe.