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Sudbury, MA — DELO and ViscoTec recently partnered to perform exper- iments to analyze adhesive abrasions to dispensing systems. The tests confirmed that even highly filled adhesives can be dis-


www.us- tech.com


pensed reliably and precisely over time, without causing mechanical abrasions to dispensing systems. The automotive and electronics


industries have constant need to meet the ever-increasing demands


found in temperature stability and media resistance. Because of this, and because properties like electrical or thermal conductivity or adapt- ed expansion coefficients need to be achieved, adhesive manufac- turers fill their products with ad- ditional raw materials including metal or minerals. These robust materials are


considered abrasive and can be difficult to dispense. ViscoTec used two of its dis-


pensing units in the testing, the eco-PEN and RD, with two elas- tomer stators each. Six epoxy resins from DELO with filler con- tent between 25 and 50 percent were used.


The stators were placed in the


adhesives for 168 hours. General chemical suitability for long-term contact was observed, as well as the change in mass, the dimensional ac- curacy, and the hardness and elastic- ity of the elastomers. No abnormali- ties or deviations from the tight pro- duction tolerances were found, elimi- nating the possibility that chemical reactions between two components would affect results. A series of 24 long-term tests


that included cyclic dispensing oper- ations were performed. Each includ- ed two seconds of dispensing, fol- lowed by a one-second pause to simu- late typical dispensing behavior of an automated manufacturing process. Just under 300,000 dispensing cycles


CoaxStrip 6480 The Most Versatile Coaxial Cable Stripping Machine


The new CoaxStrip 6480 stripping machine increases production by an average of     software, and high production performance, the CoaxStrip 6480 is the perfect 


 To Be Precise. ViscoTec 3RD8 dispenser.


PEN dispenser and approximately 529.1 lb (240 kg) for the RD dis- pensers. Every 20 hours, three dis- pensing shots were weighed and compared over time. The test results confirmed accurate and repeatable dispensing for all test pairs. Before and after the endurance


tests, the rotors, made of chrome- plated stainless steel, and the elas- tomer stators of the dispensing units were measured. After 300,000 dis- pensing cycles, there was no sign of wear on the rotors and a miniscule sign of wear on the stators that fell within the tight manufacturing


guidelines. Contact: DELO Industrial


Adhesives, LLC, 144 North Road,


Suite 2650, Sudbury, MA 01776 % 978-254-5275 E-mail: info@delo.us Web: www.delo-adhesives.com


Stratasys Supports Software to Simplify 3D Printing


Eden Prairie, MN — Empowering de- signers and engineers to embrace new 3D-printed possibilities. Strata- sys is further removing complexity from design-to-3D print processes. GrabCAD Print’s Advanced FDM feature is aimed at ensuring design intent through intuitive model inter- action to rapidly deliver strong, light and purpose-built parts.


By avoiding laborious CADto-


STL conversion, users are able to work in high fidelity and rapidly ad- vance the designto-3D print process, which can boost timeto- market. Advanced FDM is designed to speed part production, while main- taining creation of purpose-built parts that minimize weight, without compromising strength. With rich CAD-native build con-


trols, the solution does not require manual generation of complex tool- paths — cutting overall programming times for 3D printing. Intuitive fea- tures achieve desired part characteris- tics through automatic control of FDM build attributes. Engineers easily se- lect areas on native design geometry and specify design attributes, letting Advanced FDM automatically calcu- late 3D print toolpaths. Assigning attributes directly to


CAD models, users pinpoint areas of strength and rigidity, control infills, ensure sufficient material around holes with inserts, and avoid seams. Since toolpaths are automatically generated from model assignments, the user can expect to spend signifi- cantly less time on part set up, with- out losing strong, high-quality, pur- pose-built FDM parts. GrabCAD’s Advanced FDM is


available to download with GrabCAD Print (from versions 1.24) and is sup- ported on the following Stratasys 3D printing systems: F370, Fortus 380mc, Fortus 380mc carbon fiber edition, Fortus 450mc, Fortus 400mc,


Fortus 900mc, and F900. Contact: Stratasys, 7665 Com-


merce Way, Eden Prairie, MN 55344 % 952-937-3000 fax: 952-937-0070


See at APEC, Booth 453


E-mail: craig.librett@stratasys.com Web: www.stratasys.com


March, 2019 DELO and ViscoTec Partner for Dispensing Tests


made up each test series, correspon- ding to approximately 66.1 lb (30 kg) of dispensed adhesive for the eco-


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