As SUMIKAEXCEL PES is an amorphous resin, a welding is relatively easy to perform if both pieces to be bonded are made of SUMIKAEXCEL PES. Table 5-2-1 shows typical welding methods and features that can be used for welding SUMIKAEXCEL PES. Since features depend on the welding method, it is necessary to consider the size and shape of a product, the characteristics required for the product, and economic efficiency (equipment price, cycle, etc.) when selecting it.

Table 5-2-1 Welding of SUMIKAEXCEL PES

Welding method		Hot plate welding	Ultrasonic welding	Vibration welding	Laser welding	IR welding	CVT (IR+Vibration welding)
Weldability	Welding strength	E*	E	E*	E	G	E
	Appearance of welded area	P	G	G	E	E	E
	Weldable resin	Thermoplastic resin	Thermoplastic resin	Thermoplastic resin	Light transmitting resin Light absorbing resin	Thermoplastic resin	Thermoplastic resin
	Welding time	10-30sec	0.1-5sec	2-10sec	2-15sec	10-30sec	5-30sec
	Weldable size	Heater size-dependent	Business card size	Pallet size	About A3 size	Instrument panel size	Instrument panel size
Design	Product shape restrictions	Limitation on heater shape	Basically flat	Some 3D shape	Highly flexible	Superior to vibration welding	Highly flexible
	Welding area design	Dedicated design	Dedicated design	Dedicated design	Dedicated design	Dedicated design	Dedicated design

* There is a case that it doesn't weld because the softening temperature of PES is high.
E : Excellent, G : Good, P : Possible