Welding

From the perspective of durability and weld strength, joining by welding is often used, and the hot plate welding method, vibration welding method, and ultrasonic welding method are typically used for SUMIKASUPER LCP. Laser welding methods that use laser light have also become common.
Resin temperature and shear (vibration) when welding are very important conditions for SUMIKASUPER LCP welding. Ultrasonic welding and CVT (IR + vibration welding) shown in the following table are preferable for SUMIKASUPER LCP welding.

Table 5-1-1 Typical Welding Methods for SUMIKASUPER LCP

Welding method Hot plate
welding		 Ultrasonic
welding		 Vibration
welding		 Laser
Welding		 IR
welding		 CVT
(IR+ Vibration
welding)
Application to
SUMIKASUPER LCP
 N
Does not melt due to
high melting point		 G N
Does not melt due to
high melting point		 P-N
If the product is thick,
the laser
will not penetrate		 P G
weldability Weld strength Have limited
applicability		 G
(Small things are E)		 E E G E
Appearance
of welded
part		 P G G E E E
Weldable
resin		 Thermoplastic
resin		 Thermoplastic
resin		 Thermoplastic
resin		 Clear resin
Absorbent resin		 Thermoplastic
resin		 Thermoplastic
resin
Weld time - 0.1-5sec 2-10sec 2-15sec 10-30sec 5-30sec
Weldable
size		 Heater size-dependent Business card size Pallet size Tail lens or
similar size		 Instrument panel size Instrument panel size
Design Product shape
restrictions		 Limitation on
heater shape		 Basically flat 3D shape Highly flexible Superior to
vibration welding		 Highly flexible
Welded
part design		 Exclusive design Exclusive design Exclusive design Exclusive design Exclusive design Exclusive design

E = Excellent, G = Good, P = Possible, N = No

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