Here’s a great idea for: Deep hole drilling
pared to a human operator. While those increases are excel- lent for supporting high productivity, the additional heat and welding duration can be especially harsh on consumables— nozzles, contact tips and gas diffusers (or retaining heads). Companies need to take steps to avoid the pitfall of excessive consumable changeover. Entering the weld cell for purposes other than part changeover or routine pauses in the operation can add unnecessarily to downtime, which can easily add up per shift, day, month and year, resulting in lost productivity. Excessive consumable changeover is also costly, as it increases inventory and inventory management.
Loose connections increase electrical resistance, causing the consumables to generate additional heat that can shorten their lifespan and/or cause them to perform poorly.
There are two key steps companies can take to increase consumable life in their robotic applications and reduce down- time. One, install consumables properly and maintain tight connections throughout the course of welding. Loose connec- tions increase electrical resistance, causing the consumables to generate additional heat that can shorten their lifespan and/ or cause them to perform poorly. Follow the manufacturer’s instructions for proper consumable installation, taking care to tighten the consumables appropriately. It’s also a good idea to check the consumables periodically during routine pauses in welding, as they can loosen throughout a shift. Two, install the robotic MIG gun liner properly, as this helps prevent downtime to address wire feeding issues or to correct a burnback, in which the wire “burns back” into the contact tip. Follow the manufacturer’s instructions for trim- ming and installation, using a liner gage to confi rm the correct liner length.
Preventing premature power cable failure, which can occur in both through-arm robotic welding systems (where the cable feeds through the arm of the robot) or in standard robotic welding systems (also referred to as over-the-arm) is also important. Be mindful of the path the robot has been pro- grammed to follow, the speed at which it moves and the cable length. The power cable should clear the robotic arm and tool- ing to prevent it from catching or rubbing against either part.
October 2014 |
ManufacturingEngineeringMedia.com 79 KOMET KUB Centron® Powerline Double-effective drill for depths up to 9xD.
The idea:
Doubling the feed rates of existing deep hole drills.
Why it’s great:
• Optimal dimensional accuracy, stability, straightness and process reliability.
• High feed rates and excellent chip removal, even on hard to machine materials.
• Compatible with existing KUB Centron® basic elements.
Learn more about this and other great ideas. Go to
www.komet.com/greatideas or scan this QR code:
www.komet.com 800-656-6381
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