Conformal cooling channels

This paper deals with the reduction in blow mould process time of a 1-litre motor oil bottle produced at a local manufacrnring company by considering the design of straight drilled conformal cooling channels, which can be easily created in metal moulds by conventional machining. 

The full procedure of the Pro/Mechanica thermal analysis of the mould is presented here only for conformal cooling channel as shown in Figure 3, as the procedure is the same for other three cases. 

The temperature region (IbO-lSO C) should be the least from the base of the cavity as well as from the sides of the cavity for a better cooling system. Table 1 shows that for a conformal cooling channel, the distance of this temperature region from the sides of the cavity as well as from the base of the cavity is the least compared to all other layouts. This indicates that conformal cooling channels provides better cooling compared to the other three types of cooling channels. This is further confirmed by the results of the transient thermal analysis. 

MANUFACTURING OF PLASTIC LENS MOLD CONFORMAL COOLING CHANNEL USING DIRECT METAL LASER SINTERING AND SPRAY-FORMED TOOLING... 

In this study three types of lens mold were manufaetured. We examined the manufacturing possibility of conformal cooling channel and the improvemait of the cooling performance. At results, we get conclusions as below ... 

Fig. 2. 3D CAD model of cooling channel (a) conventional cooling channel, (b) conformal cooling channel.

Interior channels can be made in a process which puts the idea of contour-adapted conformal cooling into reality. 

On Fig. 6a-c there are displayed tool inserts obtained from different AM processes. They show details like interior channels for conformal cooling application, dome-shaped stand-alone structures, or deep and narrow gaps. 

For analysis purpose only one half of the mould is considered in this study and aluminium (AL2014) is selected as the mould material. Four types of cooling channels are analysed in this study for comparative investigation with conformal cooling. 

---