Peak to Peak Starting Amplitude Ranges for Successful Welding

Amplitude ref. chart for 20 KHZ welding
Amorphous resins Microns Thousandths
ABS (Cycolac) 35-45 1.4-1.8
ABS Polycarbonate (Cycoloy) 45-55 1.8-2.2
Acrylic (Plexiglass, Perspex) 35-45 1.4-1.8
Acrylic Multipolymer (XT-Polymer) 40-55 1.6-2.2
Phenylene-Oxide (Noryl) 45-50 1.8-2.2
Polycarbonate (Lexan) 50-100 2.0-4.0
Polycarbonate/Polyester 50-100 2.0-4.0
(Xenoy Macroblend)
Polystyrene 35-45 1.4-1.8
Polysulfone (Udel) 65-100 2.6-4.0
Polyvinylchloride (Rigid PVC) 40-75 1.6-3.0
SAN/NAS 30-65 1.2-2.6
Styrene Block Copolymers (K-Resin) 35-45 1.4-1.8

 

Crystalline Resins
Acetal (Delrin, Celcon) 75-125 3.0-5.0
Liquid Crystal Polymers (Xydar) 60-125 2.4-5.0
Nylon (Zytel) 90-125 3.5-5.0
Polyester PBT (Celanex, Valox) 90-100 3.5-4.0
Polyester PET (Rynite) 60-125 2.4-5.0
Polyetherether Ketone (Peek) 60-125 2.4-5.0
Polyetherimide (Ultem) 60-125 2.4-5.0
Polyethylene P/E 70-125 2.8-5.0
Polyphenylene Ether/Oxide (Prevex) 60-125 2.4-5.0
Polyphenylene Sulfide PPS (Ryton) 80-125 3.2-5.0
Polypropylene P/P 70-125 2.8-5.0

 

Applications
Welding 30-125 1.2-5.0
Staking 75-125 3.0-5.0
Swaging 75-125 3.0-5.0
Inserting 20-35 0.8-1.4
Spot Welding 50-125 2.0-5.0
Degating 75-125 3.0-5.0

NOTE — Amplitude ranges may vary depending on if these are glass filled resins or if other addatives are combined with the resins listed above. Keep in mind that these are just starting points and that each application will vary.