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Your position:Primary capabilities >>Engineering services |
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Topwell's Engineers use 2D & 3D software to proceed the CAD / CAM processes, we need the 3D drawings for making the mold according to the profile of the parts and the 2D drawings to specify the dimensions & tolerances of the molded parts. Customers can provide ProE Part File; STEP; Parasolid or IGES file format for the 3D part file; and DWG; DXF or SLDDRW file format for the 2Ddrawings.
Mold Design Computer Aided Design
When we received the Purchase Order from the customers, we take immediate actions on two parts:
. Well-trained 3D Part Engineers use the 2D & 3D software as to:
1. Check the interferences and undercuts of the 3D files; if there is any interference and / or undercut, inform customer and asked whether they will resend the modified drawing to us or we should modified the part according to customer's instruction.
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Part Section Analysis |
2. Define and add the shrinkage rate to the 3D part file.
3. Define the Parting Line of the Mold into Cavity Side; Core Side; Slides or Lifters; Inserts and Copper Electrodes.
4. Modify the insufficient draft angles for proper ejection of
the molded parts; redraw all these
parts then send to the CNC Programming Section.
5. If the draft angle is not enough for ejection, ask the customer for a larger draft angle then
modify the 3D file according to customer's instruction.
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Mold Design Engineers will deeply study on the part files from the customer then performed the analysis as to:
Ensured that there is no undercut on the part; any interference on mold actions, sufficient draft
angle for the Surface Textures or Part Ejection.
Design the Proper Mold Actions according to the need.
Determine the Best Injection Gate Location; Best Gate Type; Best Gate Section Area for the Part and
well balance on the runner for Multi-Cavity Mold.
Determine the Water Cooling and its Location, for sure Heat Transfer is enough that the Mold
Temperature on Cavity Side and Core Side should be as even as possible and make sure that no
conservation of heat partially on the cavities or cores.
Make sure that there is enough Air Venting on the Mold and for sure no Air Trap Burnt Mark when
Molding with High Speed.
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Topwell can provide the 3D Mold Layout to the customer if they required.
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Computer Numeral Control Programming Section |
CNC programmers will proceed the following procedures after received the files from the Mold Design Engineers and Parting Engineers:
Compile the CNC programs according to the Modified Part Files;
Perform the tool paths for CNC Milling and / or EDM Wire Cutting, make sure no error or interference in the programs.
Send the checked programs via intranet and distribute printed copy to the CNC Machining Section for machining the Steel Inserts or Copper Electrodes.
Or send the program via intranet and distribute printed copy to the EDM Wire Cutting Section for EDM Wire Cutting. |
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Computer Numeral Control Programming |
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| Mold Flow analysis |
we can use Mold Flow to analysis the gate best position and fill in state . |
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