Plastics Technology - Dedicated to improving Plastics Processing.
Issue link: http://pty.epubxp.com/i/864540
One of the most significant benefits of CT scanning for injection molded parts is it easily tells how much shrinkage has occurred throughout the part, and graphically illustrates precisely where. It can provide complete data on wall thickness and draft angles to help prevent problems in part ejection. The process will identify part warpage, voids, and porosity to help detect structural integrity issues and possible points of failure. It will quickly find missing features, identify human error, and help troubleshoot assembly issues. CT scanning gives molders the ability to measure mold wear by easily comparing the CAD model or first-article inspection image with that of the latest production run to determine the degree of mold wear over the course of the product lifecycle. Images of parts produced late in a production run can be graphically compared with displays of earlier measurements. CT scanning is ideal for analyzing very small parts and very small features that would be diffi- cult or impossible to measure using other technologies. It can be used to scan "micro molds" used for extremely small parts. CT imaging makes small parts look big—easy to see and analyze—where CMMs are unable to gain access to small features and where the probe styli might be bigger than the feature or part itself. CT scanning can often replace vision systems or microscopy. And the entire process is simplified by eliminating the need for traditional fixturing. Parts can be simply set into a piece of foamed polystyrene. INVESTIGATIVE & FAILURE ANALYSIS CT x-ray scanning is also ideal for use in failure analysis of systems. It can see how assemblies fit together and how their plastic, rubber, and metal components function together, without the need for disassembling or destroying the object. This allows identification of problems that could not be identified by examining disassembled individual parts. CT scanning enables non- destructive 3D inspection of hidden features. This largely prevents subjective evaluation or operator influences. The scanner can detect material overhang (red in top photo) or display areas of possible dimensional instability (blue in bottom photo ). Absolute Haitian ● 508-459-5372 ● 216-452-1000 ● www.absolutehaitian.com ENERGY-SAVING TWO-PLATEN TECHNOLOGY Haitian Jupiter II 506 to 7,425 U.S. tons The Jupiter II is perfectly suited for producing products requiring mid-to-large machine capacity such as garbage cans, appliances, automotive exterior, interior and underhood parts, and logistics containers. Features include: • Two-platen design for high productivity per square foot • Faster injection speeds and clamp movement • High mold-carrying capacity and clamp rigidity • Generous mold open stroke • Power-saving servo hydraulics Why pay for more molding machine than you need? Call us to learn more about the Jupiter II. We were working with a budget so cost was a major consideration. In the end, it came down to our comfort level with Absolute Haitian's ability to support us after the sale with parts and service. Craig Kellogg President/CEO Tulip Molded Plastics Corp. 60 SEPTEMBER 2017 Plastics Technology PTonline.com C T S C A N N I N G T ips & Technique s