Sonics 1098 Press User Manual download pdf (Page 7)

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I N S T R U C T I O N M A N U A L • M O D E L 1 0 9 8

I N T R O D U C T I O N

The model 1098 press is a 20 kHz precision pneumatic actuator (tabletop

version) used for ultrasonic plastics assembly. The 1098 press can be

supplied with the following power supplies:

■ FD . . . . . . . . . . . . . .Timer

■ FDL . . . . . . . . . . . . .Timer/Linear Encoder

■ FM . . . . . . . . . . . . . .Microsonic Processor™

■ FO/ML . . . . . . . . . . .Microsonic Processor™/Linear Encoder

O V E R V I E W O F U L T R A S O N I C P L A S T I C S

A S S E M B L Y

WHAT IS ULTRASONICS?

Ultrasonics refers to vibrational waves with a frequency above the human

audible range which is usually above 18,000 cycles per second (Hz).

PRINCIPLE OF ULTRASONIC ASSEMBLY

The basic principle of ultrasonic assembly involves conversion of high

frequency electrical energy to high frequency mechanical energy in the form

of reciprocating vertical motion which, when applied to a thermoplastic,

generates frictional heat at the plastic/plastic or plastic/metal interface. In

ultrasonic welding, this frictional heat melts the plastic, allowing the two

surfaces to fuse together; in ultrasonic staking or insertion, the controlled flow

of molten plastic is used to capture or lock another material in place (staking)

or encapsulate a metal insert (insertion).

ULTRASONIC ASSEMBLY SYSTEMS

“Sonics” ultrasonic assembly systems are generally composed of the

following major elements: a power supply, converter, booster, horn, pneumatic

press and holding fixture, as detailed in the diagram on the next page. A

review of this diagram will help you understand the basic elements involved in

the assembly process and their relation to each other.

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