Vibración vs. otros métodos de soldadura
Vibration vs. Infrared Welding
VIBRACIÓN |
INFRARROJO |
---|---|
Faster cycle times:
8 to 15 seconds typical. |
Slower cycle times:
20 to 60 seconds typical. |
Cannot weld tall, thin, non-supported either: a) inside walls or b) outside walls perpendicular to the direction of vibration. | Can weld tall, thin, non-supported inside and outside walls. |
Process works well for a variety of applications (some limitations). | Process works well for a variety of materials (few limitations). |
Can be difficult to weld VERY large parts. | Almost no part size limitations. |
Lower joint strength with Polypropylene and Polyethylene due to absorption of vibration within the material instead of transfer to the joint area. | Higher joint strength with Polypropylene and Polyethylene as the process heats the interface without friction. |
Process can join certain dissimilar materials (limited number). | Process can join certain dissimilar materials (limited number). |
Can weld parts with contours in one direction only. | Can weld parts with contours in both directions. |
Weld plane limited to 10° maximum from flat in the axis parallel to vibration. | Weld plane limited to 45° maximum from flat plane. |
Lower tooling costs (no infrared platen required). | Higher tooling costs (requires infrared platen). |
Less complex tooling. | Process requires an infrared platen assembly. |
Lower tooling maintenance. | Infrared platen maintenance; periodic replacement of infrared emitters required. |
Faster tooling change-over times. No platen to change. | Slower tooling change-over times; may have to change infrared platen. |
Process can create flash that can break off causing loose particles (application and material dependant). | Process creates solid, smooth flash bead with virtually no particulate. |
Virtually no smoke or fumes during welding process. | Process most often will create smoke and fumes. |
Vibracion vs. Placa Caliente
VIBRACIÓN |
PLACA CALIENTE
|
---|---|
Faster cycle times:
8 to 15 seconds typical. |
Slower cycle times:
15 to 45 seconds (high temp) typical. |
Cannot weld tall, thin, non-supported either: a) inside walls or b) outside walls perpendicular to the direction of vibration. | Can weld tall, thin, non-supported inside and outside walls. |
No direct control of temperature at weld joint. | Direct control of temperature at weld joint. |
Process works well for a variety of applications (some limitations). | Process works well for a variety of materials (few limitations). |
Easy welding of Nylon. | Complex to weld Nylon. Involves ultra high-temperature heat platen cores which must be scrubbed with metal brushes every cycle to clean off build-up of residual material. Yields the strongest bonds compared to most other welding methods. |
Can be difficult to weld VERY large parts. | Almost no part size limitations. |
Lower joint strength with Polypropylene and Polyethylene due to absorption of vibration within the material instead of transfer to the joint area. | Higher joint strength with Polypropylene and Polyethylene as the process heats the interface without friction. |
Fillers in the material are not a problem. | Fillers in the material can build up on the heat platen requiring periodic cleaning (automatic cleaning systems are available on certain models). |
Process can join certain dissimilar materials (limited number). | Process can join certain dissimilar materials (limited number). |
Can weld parts with contours in one direction only. | Can weld parts with contours in both directions. |
Weld plane limited to 10° maximum from flat in the axis parallel to vibration. | Weld plane limited to 45° maximum from flat plane. |
More sensitive to molded part variations. | Less sensitive to molded part variations. |
Higher initial capital equipment costs. | Lower initial capital equipment costs. |
Lower tooling costs (no heat platen required). | Higher tooling costs (requires heat platen). |
Less complex tooling. | Process requires a heat platen assembly. |
Lower tooling maintenance. | Heat platen maintenance; replace heaters and Teflon inserts when using low temperature. |
Faster tooling change-over times. | Slower tooling change-over times; also may have to change heat platen and allow for heat up. |
Process can create flash that can break off causing loose particles (application and material dependant). | Process creates solid, smooth flash bead with virtually no particulate. |
Virtually no smoke or fumes during welding process. | Virtually no smoke or fumes during welding process at low temp; will create smoke and fumes when welding at high temp. |
Lower power consumption (no heat platen heaters). | Higher power consumption (required for heaters). |