Solving Assembly Challenges in Reduced Footprint Applications
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Transcript of Solving Assembly Challenges in Reduced Footprint Applications
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Solving Assembly Challenges in Reduced Footprint Applications
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This webinar will be available afterwards at
designworldonline.com & email
Q&A at the end of the presentation -
Hashtag for this webinar: #DWwebinar
Before We Start
Post your questions in questions
box in gotowebinar panel on the
right
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Moderator
Leslie Langnau Design World
Presenter
Jay McKenna Penn Engineering
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PennEngineering
microPEM™ Fastener Technology
Presented by Jay McKenna
Global Product Mgr – New and Micro Products
Solving Assembly Challenges in Reduced Footprint Applications
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Who is PennEngineering? • Penn Engineering & Manufacturing Corp. (PEM)
founded in 1942 in Doylestown, Pennsylvania, USA is the global leader in the design and manufacture of thin sheet fastening devices and installation systems.
• PEM is the inventor and continues to be the sole manufacturer of genuine PEM® brand fasteners.
• We currently have regional manufacturing and technical centers in two U.S. locations, Ireland and China.
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PENNENGINEERING FASTENER
INSTALLATION METHODS
• Self-Clinching
• Broaching
• Surface mount
• Weld
• Flaring
• Swaging
• Inserts for plastics
• Blind threaded rivet
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PENNENGINEERING Technical Services
• On-Site training.
• Comprehensive website includes complete fastener 3D modeling capabilities.
• Trained field technical representatives
• Global testing laboratories.
• Cost Savings Investigations (C.S.I.).
• Prototype development.
• Installation solutions.
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What is the “micro” in microPEM?
• Threads as small as M1.
• Pin diameters as small as 1mm.
• Standoff lengths as short as .040”/1mm.
• Attach sheets as thin as .003”/0.08mm.
• Clinching into sheets as thin as .012”/0.3mm.
Smaller products are in development.
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Why so small?
We actively conduct Product Teardowns and CSI
reviews for our customers. We have found in our analysis and
investigations that they often need smaller and smaller clinch
fasteners for thinner and thinner panels, to replace the
adhesives, rivets or welds they have been using. This is driving
us to provide more assembly options for when they are
designing their next product.
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Micro Fasteners Overview
A new family of solutions from PennEngineering
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MPP - Micro Pin • Satisfies micro positioning and
alignment requirements with pin diameters as small as 1.0mm.
• Flush installation into materials as thin as .020” / 0.5mm and as hard as HRB 92 / HB 195, such as stainless steel.
• Made from A286 - excellent corrosion resistance.
• Chamfered end eases mating hole alignment.
• RoHS compliant.
MPP
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MPP – Application Example
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Phone: Pin used as a spring anchor.
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400,000 per day, replacing weld pins
MPP – Application Example
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MSO4™ - Self-clinching Micro Standoffs
• Thread sizes: M1.0, M1.2, M1.4, M1.6, #0-80, #2-56
• Made from 400 Series Stainless Steel
• Installs into materials with a maximum hardness of HRb 88 and as thin as 0.4mm / .016”
(0.3mm / .012” possible with modification)
• Lengths as short as 1mm or .04”
• Round, knurled head for close centerline to edge placement.
• RoHS compliant
MSO4
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Phone: Standoffs clinched into 0.4mm/.016” stainless.
MSO4 – Application Example
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Cell phone: M1.4 Standoff clinched into 0.43mm/.017” stainless.
MSO4 – Application Example
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Cell phone: M1.4 Standoff welded onto 0.4mm/.016” stainless.
MSO4 – Application Example
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Laptop: M2 standoffs clinched into 0.5mm/.020” stainless
heatsink mounting plate.
MSO4 – Application Example
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Camera: M1.6 standoffs flared into 0.2mm/.008” stainless
heatsink mounting plate.
MSOFA – Flaring Standoff – Application Example
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Micro SMTSO
SMTSO
• Surface mounted to PCB.
• Thread sizes down to M1.
• Material choices: Brass,
Steel
• Bright or Matte Tin plated
• Sold Loose or Tape-And-Reel
• Hex body for additional
strength.
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SMTSO – Application Example
Laptop: M2 SMT nuts 1mm tall on PCB
2.5mm ID spacer
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SI® Brand Micro Inserts for Plastics
Inserts for Plastic
• Thread Sizes from M1.0
• Material choices: Brass,
Stainless Steel
• Style Choices: Ultrasonic,
Heat-Stake, Molded-In,
Press-In
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Do you use micro screws?
1. Yes – only to hold an assembly together.
2. Yes – to allow for disassembly and reassembly.
There are now two new engineered solutions.
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Micro TackPin
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Yes – to hold an assembly together. Solution = Micro TackPin
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Micro TackPin
• Intended for attaching two surfaces together, much the way a screw would. The part clinches into the bottom member while retaining the top member with a head.
• Tapered tip assists in assembly into the very small mounting hole.
• Interference band sizes hole during assembly to alleviate tolerance concerns.
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Micro TackPin
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Micro TackPin
Value = Significant Cost Reduction
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Micro TackPin – Application Example
Over 250 million screw replacements this year for this project
Over 150 million more for two other projects
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Micro TackPin – Application Example
PCB to copper busbar
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• What is the benefit to use a PEM® TackPin instead of a screw?
o The PEM® TackPin is stronger in pullout than the thread strength of a
screw of the same length.
o No risk of cross-threading.
o Less weight than a screw.
o Smaller than a screw, so designs can be thinner/smaller.
o No need for the cost of a nylon locking patch.
Micro TackPin
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Micro TackPin
• What is the process cost savings?
o Simplified assembly - press-in versus turned screw.
o Throughput is faster.
o No need to control torque settings to drive screws.
o No scrap costs due to cross-threading, over installation, or screw breakage during assembly.
o If adhesives are used, a PEM® TackPin can be used without any recycling concerns that adhesives can cause.
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Micro TackPin
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Do you use micro screws?
1. Yes – only to hold an assembly together.
2. Yes – to allow for disassembly and reassembly.
There are now two new engineered solutions.
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Mortorq® Super Screw
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Yes – to allow for disassembly and reassembly.
Solution = licensed MTS® Screw
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Mortorq® Super Screw
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Mortorq® Super Screw
54% reduction
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Mortorq® Super Screw
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Mortorq® Super Screw
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Mortorq® Super Screw
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PennEngineering
microPEM™ Fastener Technology
Solving Assembly Challenges in Reduced Footprint Applications
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Questions?
Design World Leslie Langnau [email protected] Phone: 440.234.4531 Twitter: @DW_RapidMfg
Penn Engineering Jay McKenna [email protected] Phone: 215-766-8853 x1229 LinkedIn: linkedin.com/in/jaymckenna
Ask a question by submitting it in the Questions tab in the GoToWebinar panel on the right of your screen
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Thank You
This webinar will be available at designworldonline.com & email
Tweet with hashtag #DWwebinar
Connect with
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Facebook: /engineeringexchange
LinkedIn: Design World Group
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Discuss this on EngineeringExchange.com
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