To understand what mass finishing is please see our post: Mass Finishing – What Is It And Why Should You Consider Using It?
Mass finishing machines come in different shapes, sizes and styles; from vibratory bowls and troughs, high energy centrifugal disk machines to drag finishing. Machines can often be chosen in batch and continuous flow versions and as such their application range is as wide as it is varied. below are just some of the possible applications:
Continue reading Applications For Mass Finishing Machines
Barrel, vibratory and high energy disk centrifugal force machines are all precisely controlled methods of processing small and/or large batches of engineered components in order to; remove sharp edges, eliminate tool marks, remove flash, de-scale, radius edges, polish and/or burnish the surface.
Compared to traditional hand finishing methods the equipment brings a host of benefits including; reliability, consistency of finish produced, efficiency and effectiveness as well as reducing finishing cost per part. Added to that machines can be linked to dryers, washers, separators and transfer systems right the way through to being integrated into fully automatic ‘lights out’ production cells.
Continue reading Mass Finishing – What Is It And Why Should You Consider Using It?
Sometimes things change … including the starting condition of your parts. Worn tooling, changes in manufacturing methods or materials or investment in a new manufacturing machine can result in you no longer getting a result from your mass finishing machine like the one you have been used to and/or need. We would typically recommend a sample starting condition part is kept by the machine for reference each time parts are to be processed. Should the starting condition prove to be different often this can be accommodated in the mass finishing process itself (i.e. extended time, changes in machine speed, different media, etc…).
Continue reading Centrifugal Disc Finishing Tip 9. Check Your Starting Condition Is The Same
It is said that where a human being is involved in a process there is typically a 3% risk of error. This is because we lose focus, become distracted and invariably seek to find a way to make our lives easier. Worse still with variables such as media, water, compound, volumes of parts to be processed and process time with a mass finishing process there is often too much to tamper with!
Continue reading Centrifugal Disc Finishing Tip 8. Check You Are Following The Process Parameters
Over time the polyurethane tub and spinner will wear. This will happen more quickly with highly abrasive process media and with sharper / heavier components and very slowly with polishing processes (providing the correct ratios of parts-to-media are adhered to).
Continue reading Centrifugal Disc Finishing Tip 7. Check The Machine Tub And Spinner Are In Good Condition
Occasionally machines are disconnected and wired back in (following relocation, repair, etc…). When this happens machines can have the electrical phases reversed and can run backwards. Whilst the machine will process you will find the result isn’t as good as it should be.
Continue reading Centrifugal Disc Finishing Tip 6. Check The Machine Is Running The Correct Way
When your process is first established a full load of parts should be calculated (be it 5,500 or even 5,000). This number of parts will be equivalent to a volume which then be added to the media to fill the machine to the correct level ensuring that all operates as it should.
Continue reading Centrifugal Disc Finishing Tip 5. Too Many Parts In The Machine
The seal gap between the moving spinner and stationary tub (bowl) allows the process water, particles and any contaminants to be carried out of the bowl so the process can operate and perform to its optimum capability consistently.
Continue reading Centrifugal Disc Finishing Tip 4. Regularly Check Your Seal Gap
Water and compound are added into the machine to facilitate the cutting process and remove any debris coming from the media, parts and any additives so the process stays clean, the media can keep cutting and doing its work as it should do and to protect the parts being processed (i.e. with a rust inhibitor if corrosive).
Continue reading Centrifugal Disc Finishing Tip 3. Check You Have The Right Amount Of Water And Compound In The Machine
Abrasive media (for deburring, radiusing, blending machining marks, etc…) needs to have an ‘open face’ to work as it should. This is where you can feel the abrasive particles when dragging your finger nail over the surface of the media (like a file). When media becomes ‘clogged’ due to insufficient levels of compound being added to the process bowl, poor draining, poor quality media, etc… it becomes smooth (and even shiny in extreme cases). Often times users can think this to be a benefit as ‘it lasts forever’. In truth though it just has stopped cutting and not only does it last forever, so do your process times! If your media is smooth and your finish or process times are adversely affected it is time to throw it away and refill the machine with new media.
Click to read Tip No. 3 Check You Have The Right Amount Of Water And Compound In The Machine
For more information on Centrifugal Disc Finishing please visit www.rosler.com
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