Assembly Planbook - July 2008 - (Page 46) Adhesive Bonding the specific thread-locker. Mechanical thread-lockers require more tightening torque, but less breakaway torque. Chemical thread-lockers require less tightening torque, but provide the most breakaway torque. Choosing an Adhesive Which thread-locker to preapply to the fastener is up to the assembler. However, the applicator can provide guidance on choosing the right material. The size and type of fastener, the type of metal, and the plating material will help determine which thread-locker to use. Epoxies are ideal for small-diameter fasteners. Epoxies are solvent-thinned and normally applied using a flow-coat system. That means the screw passes through a thin stream of epoxy. This method concentrates the optimum amount of adhesive onto the small threads. Waterbased adhesives are normally thicker and cannot be thinned to as free-flowing a consistency as solvent-based epoxies. The thicker consistency of waterbased adhesives mandates that they be The biggest advantage of preapplying thread-lockers is simply that engineers can be certain the adhesive will actually be on the fastener, in the correct amount and in the correct location. costs money—and not just for the material itself. Assemblers also need to factor in the cost of waste, dispensing equipment, and cleaning and maintenance. Mechanical vs. Chemical Locking The choice between mechanical and chemical thread-lockers depends on several factors, including cost. If the fastener will be adjusted or taken in and out several times, a mechanical threadlocker is needed. A fastener treated with a mechanical thread-locker can be inserted and removed three to five times. Under most circumstances, chemical adhesives are for one-time use. The strength of the locking material is another consideration. The tightening torque and breakaway torque will vary depending on the fastener diameter and 46 ASSEMBLY / July 2008 www.assemblymag.com ASBBG07084Weber.indd 1 6/9/08 11:57:11 AM http://www.weberusa.com http://www.weberusa.com http://www.assemblymag.com
Table of Contents Feed for the Digital Edition of Assembly Planbook - July 2008 Assembly Planbook - July 2008 Contents Editorial Quality in Assembly Station to Station Assembly Lines Assembly in Action Surviving the Roller Coaster The Human Side of Manufacturing Do Your Fasteners Need a Preapplied Thread-Locker? Manufacturing Innovation A Century of Progress Trendsetting Plants Pulse Tools Get Smart Plastics: Design for X Product Reviews Products Advertisers Index Classified Leading Lean Assembly Planbook - July 2008 Assembly Planbook - July 2008 - Assembly Planbook - July 2008 (Page Cover1) Assembly Planbook - July 2008 - Assembly Planbook - July 2008 (Page Cover2) Assembly Planbook - July 2008 - Assembly Planbook - July 2008 (Page 1) Assembly Planbook - July 2008 - Contents (Page 2) Assembly Planbook - July 2008 - Contents (Page 3) Assembly Planbook - July 2008 - Contents (Page 4) Assembly Planbook - July 2008 - Contents (Page 5) Assembly Planbook - July 2008 - Editorial (Page 6) Assembly Planbook - July 2008 - Editorial (Page 7) Assembly Planbook - July 2008 - Quality in Assembly (Page 8) Assembly Planbook - July 2008 - Quality in Assembly (Page 9) Assembly Planbook - July 2008 - Station to Station (Page 10) Assembly Planbook - July 2008 - Station to Station (Page 11) Assembly Planbook - July 2008 - Assembly Lines (Page 12) Assembly Planbook - July 2008 - Assembly Lines (Page 13) Assembly Planbook - July 2008 - Assembly Lines (Page 14) Assembly Planbook - July 2008 - Assembly Lines (Page 15) Assembly Planbook - July 2008 - Assembly Lines (Page 16) Assembly Planbook - July 2008 - Assembly Lines (Page 17) Assembly Planbook - July 2008 - Assembly in Action (Page 18) Assembly Planbook - July 2008 - Assembly in Action (Page 19) Assembly Planbook - July 2008 - Assembly in Action (Page 20) Assembly Planbook - July 2008 - Assembly in Action (Page 21) Assembly Planbook - July 2008 - Assembly in Action (Page 22) Assembly Planbook - July 2008 - Assembly in Action (Page 23) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 24) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 25) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 26) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 27) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 28) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 29) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 30) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 31) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 32) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 33) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 34) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 35) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 36) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 37) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 38) Assembly Planbook - July 2008 - Surviving the Roller Coaster (Page 39) Assembly Planbook - July 2008 - The Human Side of Manufacturing (Page 40) Assembly Planbook - July 2008 - The Human Side of Manufacturing (Page 41) Assembly Planbook - July 2008 - The Human Side of Manufacturing (Page 42) Assembly Planbook - July 2008 - The Human Side of Manufacturing (Page 43) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page 44) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page 45) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page 46) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page 47) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page 48) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page GM-1) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page GM-2) Assembly Planbook - July 2008 - Do Your Fasteners Need a Preapplied Thread-Locker? (Page GM-3) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-4) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-5) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-6) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-7) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-8) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-9) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-10) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-11) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-12) Assembly Planbook - July 2008 - Manufacturing Innovation (Page GM-13) Assembly Planbook - July 2008 - A Century of Progress (Page GM-14) Assembly Planbook - July 2008 - A Century of Progress (Page GM-15) Assembly Planbook - July 2008 - A Century of Progress (Page GM-16) Assembly Planbook - July 2008 - A Century of Progress (Page GM-17) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-18) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-19) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-20) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-21) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-22) Assembly Planbook - July 2008 - Trendsetting Plants (Page GM-23) Assembly Planbook - July 2008 - Trendsetting Plants (Page 72) Assembly Planbook - July 2008 - Trendsetting Plants (Page 73) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 74) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 75) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 76) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 77) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 78) Assembly Planbook - July 2008 - Pulse Tools Get Smart (Page 79) Assembly Planbook - July 2008 - Plastics: Design for X (Page 80) Assembly Planbook - July 2008 - Plastics: Design for X (Page 81) Assembly Planbook - July 2008 - Plastics: Design for X (Page 82) Assembly Planbook - July 2008 - Plastics: Design for X (Page 83) Assembly Planbook - July 2008 - Plastics: Design for X (Page 84) Assembly Planbook - July 2008 - Plastics: Design for X (Page 85) Assembly Planbook - July 2008 - Product Reviews (Page 86) Assembly Planbook - July 2008 - Product Reviews (Page 87) Assembly Planbook - July 2008 - Product Reviews (Page 88) Assembly Planbook - July 2008 - Product Reviews (Page 89) Assembly Planbook - July 2008 - Product Reviews (Page 90) Assembly Planbook - July 2008 - Product Reviews (Page 91) Assembly Planbook - July 2008 - Product Reviews (Page 92) Assembly Planbook - July 2008 - Product Reviews (Page 93) Assembly Planbook - July 2008 - Products (Page 94) Assembly Planbook - July 2008 - Products (Page 95) Assembly Planbook - July 2008 - Products (Page 96) Assembly Planbook - July 2008 - Products (Page 97) Assembly Planbook - July 2008 - Products (Page 98) Assembly Planbook - July 2008 - Products (Page 99) Assembly Planbook - July 2008 - Products (Page 100) Assembly Planbook - July 2008 - Products (Page 101) Assembly Planbook - July 2008 - Advertisers Index (Page 102) Assembly Planbook - July 2008 - Classified (Page 103) Assembly Planbook - July 2008 - Leading Lean (Page 104) Assembly Planbook - July 2008 - Leading Lean (Page Cover3) Assembly Planbook - July 2008 - Leading Lean (Page Cover4)
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