Plastic Injection Molding of an ABS Ready to Assemble Computer Monitor Housing
Our motto here at ASPEC is "We make it happen!" which is just what we did with the ready to assemble computer monitor housing highlighted here. This product was far more than just an injection molding project. It involved a collaborative development strategy to transform the housing from a die cast metal product to a lightweight ABS alternative that was sturdy, strong, and provided the rated EMI/RFI shielding.
Before producing a conceptual SLA model, we fine-tuned the design to alleviate potential sink marks left by the ribs and bosses of the injection mold. We forwarded the mold CAD files and Solid Models to the tooling vendor for phase one construction, and when completed, executed a sample run for dimensional inspection and part approval. Continuing operations involved texturing the mold cavity surface, construction of electro formed spray mask for use in the RFI shielding process, and creating an epoxy-cast ultrasonic welding nest for adding the brass threaded inserts.
Featuring overall dimensions of 12-⅛" in length x 9-½" in width x 1-½" in height, we produced these components on our 225 ton press from a 19 oz. shot size of flame retardant ABS plastic. Critical quality inspections validated that the ±0.010 tolerances between mounting holes allowed a tight match up when assembled and the nickel over copper plating provided the rated barrier protection. The components were bagged, stack-packed, and shipped to the customer ready for assembly.
Current production of these monitor housings is 200 units/month. If you are interested in learning more about this project, or have a metal-to-plastic conversion project you are considering, we would welcome the opportunity to hear the details. Contact us today.
Plastic Injection Molding of an ABS Ready to Assemble Computer Monitor Housing Project Highlights
- Product Name
- Monitor Housing - Front & Back
- Capabilities Applied/Processes
Plastic Injection Molding
RFI Plating, Ultrasonic Threaded Inserts
- Equipment Used to Manufacture Part
- 225 Ton Clamp - 19 ounce Shot Size
- Overall Part Dimensions
- Part Width: 9-½"
Part Length: 12-⅛"
Part Height: 1-½"
- Tightest Tolerances
- ± 0.010 Between Mounting Holes
- Material Used
- ABS Flame Retardant
- Textured Mold Surface - Mold Tech
Custom Blended Color - Gray
- Plating EMI/RFI
- Nickel over Copper
- Ultrasonic Inserted Inserts
- Brass Threaded Inserts
- In process testing/inspection performed
- Measure Mounting Hole Locations
Check Parts for Dirt Specks
- Pack Out
- Bag Inspected Front and Back Housings
Stack Pack Assembled Units for Final Assembly
- Industry for Use
- Computer - Electronic
- 200 Sets per Month
- Delivery/Turnaround Time
- 10 Weeks for Mold Production
- Delivery Location
- Standards Met
- Customer Specifications
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