The requirements:

• Precision joining of identical, stacked knit shells + / - 0.03
• Circumferential conduit design parallel + / - 0.05
• Sensor - Plug tongue Fügemaßhöhe + / - 0.02
• Pressure tight against water intrusion min. 10 m water column
• 0-fault tolerance for sensor functions after welding.
• Surface quality decorative without being affected by the process "Insert".
• No visible melting bulge admissible
• Highest productivity for the respective level of mechanization that is shortest process-and off-peak


Figure 1:
Standard use as Fügezelle requires only a 180° swivel table, out tact a finished product, and one blank in the joining stations in tact

Figure 2:
Radio key


Figure 3:
Drawing and 3D view with tolerance indications


Productivity per year:

For 3-layer medium technical availability, utilization and remain 95% minus medium organizational Availability of 5% remaining availability 90% in 5-day shift operation.
Preventive maintenance of the equipment is made in non-production days. Wear parts are planned and available.
In practice, technical and organizational availability of manual and automated processes are reversed, however, about the same in the sum.
Consider these differences are serious, despite the same basic welding machine, mechanization allows the dual use of the process!

The machine technology as the basis for high productivity reproduced in short process and idle all functions + parameters:
• Servo drive with short ramp times for precise welding vibration
• Servo pneumatics responsive to express and feed welding movements
• Contactless measurement - magnetic, 0.01 - Resolution
• Control technology with millisecond cycle times
• Solid construction with thick-walled castings guarantee, the stiffness around the 0.0 mm tolerances generally achieved only nominal values and to change to be targeted!
• Mechanical and data interfaces for linking with automation at round or work cycle
• Convenient display graphic visualization with welding force / displacement over time
• User self-programmable secondary functions as a matrix table


Table: Comparison of the degree of mechanization


The process equitable conduit design:

As a result of the circular vibration is a very small swing radius needed.
The seam can freely run in the plane.
At each point of the same welding Fügenaht kinematics there = energy input with constant power.
This also bridges less than 1.0 mm can be cleanly melted.

Figure 4:
Drawing conduit design (Courtesy: Fischer Kunststoff-Schweißtechnik GmbH, Berkatal)

Technical article from: page 20/21 - Blasformen & Extrusionswerkzeuge 5 / 2009