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Welding Techniques. Scott Colgan Nehal Kachalia Laura Stuart Penn State Behrend. Purpose. Location specific Quick and efficient Relatively low cost. Outline. Introduction Background & Theory Equipment Design Requirements Conclusions. Introduction. Background Types Ultrasonic
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Welding Techniques Scott Colgan Nehal Kachalia Laura Stuart Penn State Behrend
Purpose Location specific Quick and efficient Relatively low cost
Outline Introduction Background & Theory Equipment Design Requirements Conclusions
Introduction Background Types Ultrasonic Vibration Radio Frequency (RF) Industry Use
Background & Theory USW -- A: Fast, Clean, Efficient -- D: S-C not best VW -- A: Flash -- D: Expensive Equipment RF -- A: Leak Proof -- D: Limited Materials
Background & TheoryUltrasonic • Process http://www.dukcorp.com/us/products/thermo/plastics/upa.htm
Background & TheoryUltrasonic • Types • Welding • Swaging / Forming • Spot Welding
Background & TheoryUltrasonic • Applications • Household / Consumer • Automotive • Business / Packaging / Toys • Medical • Electrical http://www.dicofr.com/cgi-bin/n.pl/dicofr/definition/20010101005322
Background & TheoryVibration • Process • Types • Linear Vibration • Spin • Angular Friction http://www.twi.co.uk/j32k/protected/band_3/pjkrfweld.html
Background & TheoryVibration • Uses • Automotive • Consumer • Industrial http://ils.unc.edu/~mornj/images
Background & TheoryRadio Frequency • Process • Scope Plain Welding http://www.ewi.org/technologies/plastics/dielectric.asp
Background & TheoryRadio Frequency • Applications • Stationary • Inflatable • Household • Medical • Automotive • Large Parts 7 Ft Beach ball http://www.advertisingballoons.com/images/_vti_cnf
Equipment Horn Mounting unit Energy source Electrical Mechanical
Design Requirements No exclusive RF -- Any application Most shapes / sizes
Conclusions Various applications Fast and efficient Broad material selection RF – reversible; leak proof