• 2018-05-18

MAKING SMART CARDS WORK IN THE ENTERPRISE    Will smart cards improve security in the enterprise environment? Smart cards offer a secure and convenient form factor on which employees can carry digital credentials for accessing parking facilities, buildings, computers, and network resources. Indeed, the ability for an employee to carry both physical and logical access credentials can be p...

• 2018-05-18

  HOW DOES THE ULTRASONIC CUTTER WORK?   Sound is a vibration that is transmitted through a medium, such as air, water, and metals.   Ultrasonic waves are an "inaudible sound," the frequency of which generally exceeds 20 kHz. A 20-kHz frequency means that a certain medium vibrates 20,000 times per second.   The ultrasonic cutter vibrates its blade with an amplitude of 10 -...

• 2018-05-18

ULTRASONIC WELDING IS PARTICULARLY SUITED FOR ASSEMBLING MEDICAL DEVICES      Ultrasonic welding is particularly suited for assembling medical devices because it uses the device material itself to create the joint, obviating the need for adhesives. A fast, clean, efficient and repeatable process, ultrasonic welding is ideal for joining just about any plastic parts for many applicati...

• 2017-12-28

Robust Joint Design for Ultrasonic Welding of Plastic Parts While the concept of ultrasonic welding is simple, the process of designing a robust joint and developing an effective weld process can be quite complex. Typically, it starts with a nominal joint design, a nest and horn design, and the energy coupler gain to obtain the nominal vibration amplitude at the welded surfaces. Then, the process ...

• 2017-12-28

 Ultrasonic Welding on multiaxis machine   Ultrasonic robotic welding of plastic has not increased in recent years, say suppliers. They cite two reasons for this.   Many end-users prefer using an actuation system to a robot for larger parts because the stack is too heavy and slows down the robot’s arm too much,We’ve seen a decline of six-axis-robots integrated with 15- or 20-ki...

• 2017-12-28

More Control for Ultrasonic Welding The latest technology for ultrasonic plastic welding provides better process control and the tools to handle more part variations Alot can happen in 0.5 second, especially in the world of assembly. One or more rivets can be simultaneously inserted. Multiple beads of adhesive can be dispensed. And two thermoplastic pieces can be ultrasonically welded into a ...

• 2017-12-28

Higher-Frequency Ultrasonic Welding System Designed for Mini Part Manufacturers have little control over operating frequency, which can only be changed by changing the ultrasonic stack. For many years, the most common system frequency was 20 kilohertz. That’s no longer the case.   At present more customers are using 15-kilohertz systems because they need to weld larger parts. Altras...

• 2017-12-28

Ultrasonic Technology Helps Machine Hard Materials Unlike applications in medicine, inspection and parts cleaning where ultrasonic (high frequency sound) waves are applied directly, ultrasonic machining is a metalcutting process that is facilitated by ultrasonic technology. The process uses a diamond coated milling, boring or grinding tool, actuated by ultrasonic technology, that can impact a...