Hesse Mechatronics Smart Welder SW985 combines the best of two technologies: ultrasonic welding & wire bonding
- The force and ultrasonic power of ultrasonic welding equipment
- The flexibility, precision, speed and advanced process control features of wire bonding machines.
Smart Welder provide producers of medium-sized ultrasonically welded connections with increased process control and freedom of design for the next generation of capable, efficient and cost-effective designs in power electronics, battery packs and other applications.
The new Smart Welder by Hesse include precise positioning and rotation between welding tool and product, image recognition to detect the exact weld location, and derivation of an optimal trajectory to reach the weld location quickly and very precisely.
Together with long and narrow welding tools, this allows very tight spacing and thus compact products, higher power density.
Further advanced functions include touchdown sensing, precise and dynamic contact force control, diverse process control features such as monitoring of ultrasound characteristics and deformation (cf. DVS 2811), and standardized interfaces for assembly line integration.
Smart Welder can, like ultrasonic wire bonders, flexibly handle a large variety of products. New products only require a program change and possibly adapted clamping and automation.
PiQC – Process integrated Quality Control
The Hesse GmbH has implemented a new Process integrated Quality Control system (PiQC) that is unique to the global wire bonding market. A sensor integrated into the transducer allows for the first time a multi-dimensional signal analysis of the bond process. PiQC calculates a bond quality index value in realtime, using significant signals from the wire bonding process.
Advantages for volume production
- Inspection of every bond
- No mechanical load of the bond connection
- Product specific configuration of the quality control system
Feedback from the process
- Mechanical oscillation of the wedge
- Friction at bond surface
- Transducer current
- Ultrasonic frequency progression
- Wire deformation
Quality statements by PiQC
PiQC calculates a quality index for each bond based on the actual feedback signal from the process.
The signal related components of the quality index can be displayed graphically at any time.
Teach mode for reference data
- Detailed automatic analysis of the welding process
- Extraction of process-specific reference data
The precise and safe handling of the products in and out of the production machine plays a significant role in controlling the product quality, yield and efficiency of the production equipment. For this reason Hesse GmbH is offering automation concepts individually adapted for every application.
Smart Welder SW985 Datasheet