Moldex3D Broadens Co-injection Molding Simulation Capabilities in R11

The challenge of using co-injection molding process lies in the undefined interface between 1st shot (skin) and 2nd shot (core) material. After the core enters the cavity, there are two materials flowing at the same time inside the cavity. The skin/core distribution is thus determined by the flow behavior of each material, not by the cavity design alone! This unique feature of co-injection process poses difficulties for product designers and process engineers. Without proper analysis tools, molders struggle to optimize the gate location and to maximize the core content.

Based on its successful 3D simulation techinique in the Gas and Water Assisted Injection Molding, Moldex3d R11 provides complete solution for the Co-Injection Process with benefits as follows:

  • Design changes of gate location can now easily be verified to ensure proper skin/core distribution.
  • Skin thickness results are provided; even assymetric distribution of skin material such as common cornering effect can be estimated.
  • The core penetration location helps designers maximize the core content. For the controlled breakout process, the core melt front evolution after penetration can also be simulated.
  • The effects of varying processing conditions such as skin/core injection speeds, temperatures, and even delay times are all incorporated into calculation.
  • Warpage prediction is based on the skin/core distribution in the product and their relative stiffness. The elemental stiffness information can further be used for the built-in stress solver or even output to other structural analysis software.
  • Material wizard provides material comparison tool to match rheological properties such as processing winodws and shear rate dependent viscosities. PVT behavior can also be matched to prevent severe warpage caused by asymmetric shrinkage due to uneven skin/core material distribution.

The steps of comparing material properties can be found out in the Tips and Tricks session in this issue. 

skin and core material inside the cavityFig. 1  The 3-dimensional distribution of skin and core material inside the cavity
 Fig. 2  The skin thickness prediction of a multiple-gate large door panel component
 Fig. 3  The prediction of the location and core content when breakthrough happens.
The core melt front evolution after break through can also be simulated

Automatic Tapping Machine

An Automatic Tapping Machine is a highly efficient and advanced piece of equipment designed to perform tapping operations automatically. It offers precision and speed, significantly reducing manual labor and increasing productivity.
This machine is equipped with advanced technology and features that ensure accurate threading. It can handle a wide range of materials and sizes, making it suitable for various industrial applications.
The Automatic Tapping Machine often works in conjunction with other tools. For instance, a Pillar Drill Machine can be used in combination with an automatic tapping machine. The pillar drill machine is used for drilling holes, and then the automatic tapping machine can be employed to create threads in those holes.
Another related item is the Drill Tap. A drill tap combines the functions of drilling and tapping in a single tool. This can be a convenient option when working with an automatic tapping machine, as it reduces the number of steps and tools required.
The Table Drill Machine is also relevant. It is a compact and versatile Drilling Machine that can be placed on a workbench. In some cases, it can be used in conjunction with an automatic tapping machine for smaller-scale operations.
Finally, the Industrial Pillar Drill is a heavy-duty drilling machine commonly found in industrial settings. It can be used to prepare holes for the automatic tapping machine to create threads.
In conclusion, the Automatic Tapping Machine is a powerful tool for industrial applications. Its combination with other machines like pillar drill machines, drill taps, table drill machines, and industrial pillar drills can enhance productivity and provide efficient threading solutions.

Pillar Drill Machine,Drill Tap,Table Drill Machine,Industrial Pillar Drill

Zigong Yibaijie , https://www.oz-yibaijie.com

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