| I will let you know how you could perform a | | | | a material and unfortunately, most manufacturers |
| fundamental step in preparing to work with metals | | | | have to reduce, or more often totally eliminate them. |
| just like steel, aluminum and brass. We will refer to | | | | As specifications for precision, cleanliness, and ease |
| the basic step as deburring. Deburring suggests to | | | | of assembly increase, existing deburring systems |
| clean rough or sharp edges and is also for your own | | | | have improved, and a few new procedures have |
| protection; you do not want to cut yourself while | | | | been added. Almost all burrs are removed by |
| working with raw materials. | | | | chemical or physical means, but there are several |
| Many companies use a tumbling method to produce a | | | | other systems. Ice can be used as an abrasive within |
| smooth finished look and to remove burrs from large | | | | a deburring method. A flow of ice under air pressure |
| lots of components. Generally there are dry as well | | | | creates particles that hit the element. This method is |
| as wet tumblers with several kinds of media to | | | | most effective with softer metals just like alloys of |
| create specific finishes for different kinds of material. | | | | aluminum as well as brass. The process is |
| Tumblers help with the deburring of holes and edges. | | | | environmentally friendly, plus, the dissolved ice helps |
| However, parts may require further hand polishing | | | | clean the part's surface. |
| off, specifically on holes. Using the right size media is | | | | Fanuc robotics mainly uses 2 different ways of force |
| essential to avoid having it become caught inside the | | | | control. The 1st is an open loop method with an |
| holes. Once the media gets trapped inside the hole, it | | | | independent pressure control gadget that is |
| could be very hard to take out. Tumblers come in a | | | | positioned in between the end-of-arm-tooling and the |
| large range of sizes with many types of media. A | | | | automatic robot. With this particular method, force is |
| number of the media used contain grit made of | | | | controlled independently of the robot. The second is |
| walnut shell, corn cob, aluminum oxide, steel shot, | | | | a closed loop method that uses a force sensor to |
| ceramic and many different types of polishing | | | | give feedback to the robot operator. With this |
| compounds and creams. | | | | method the robot path is adjusted dynamically, based |
| Burrs are simply thought as unwanted projections on | | | | on the feedback from the pressure sensor. |