Cibo Unitised Fillet Weld Grinding Discs

Looking for Cibo fillet weld grinding discs?  All the products you need are here. 

Considering moving on to the next generation unitised?  Check out our 2 new exciting products:

1:  Cibo's New GA Combi Unitised Discs

  • Achieves the SA5 unitised pre-polish finish with the aggression of the MA7 & MA8 
  • For a more detailed introduction read our GA Combi blog here

2:  For Heavier Tig Welds.  The New TA10 with an Engineered Abrasive Grain

150mm diameter unitised discs fit fillet weld grinders, including the Cibo Finiteasy machine & the new FinitAll narrow head grinder.

Cibo Unitised Fillet Weld Grinding Discs

Cibo Unitised Fillet Weld Grinding Discs FAQs

  • What are GA Combi Unitised Discs?

    Cibo Abrasives have an excellent record of end user driven innovation.  Based on the problems we see in the market place we are constantly on the look-out for ways to improve process times or reduce process complexity.  It was out of this philosophy that the combi unitized range was born.   

    • 20 years ago - to grind, finish & mirror polishing a tig weld was a 5 or 6 stage process
    • 15 years ago, with Cibo innovation this was reduced to 3 stages
    • Today with the introduction of the GA Combi unitised this is now a 2 stage process.

     

    The most popular process for polishing fillet welds was developed by Cibo 15 years ago with the introduction of the Cibo FinitEasy.  Previous to this, dynafiles & Beltit powerfile machines had been used which were slow, cumbersome and prone to causing abrasive belt damage when grinding out the weld.  They still have their place in the workshop for heavier weld grinding but...

    In simple terms, Combi Unitised is an aggressive aluminium oxide disc sandwiched between two softer & finer silicon carbide discs. 

     All GA Combi discs are 6mm wide to allow the thinner 3mm centre of the disc to remove and blend the weld in the centre of the fillet whilst leaving the flexible and finer outer edges to apply a consistent, high quality fine satin finish to your workpiece.  Leaving a finish which is ready for mirror polishing if required.

     

     

    The new Cibo Combi unitised discs.

    • 100% control
    • 30% reduction in finishing time
    • Prevents undercutting
    • Remove fillet welds & satin polish in one
    • Available in 3 distinct grades

     

     GA Combi Fillet Weld Grinding Process

    There are two key benefits to the GA Combi unitised process.  Firstly it is easier and simpler to do and secondly, what was once a six stage process is now one or two stages.  

    Stage 1:  Remove and polish the tig weld with GA Combi Unitised.  Only satin polishing?  Stop right here. 

    Stage 2:  Mirror polish the weld with a felt disc and Cibo polish.

  • How can I remove fillet tig welds with a Combi Unitised abrasive disc?

    The only decision you need to make is which grade of disc will be suited to your application.  

     

     1.  Removing & polishing a fused fillet weld

     

    Stainless steel fillet welds

    If you have fused the stainless weld and there is only a small amount of ripple to remove then we would recommend the GA 6 discs.  They have enough aggression to blend away the tig weld ripple easily without the risk of digging or gouging into the metal leaving a clean bright invisble weld.

     

    Aluminium fillet welds

    On a fused aluminium weld the GA6 is too aggressive.  We would recommend using the SA5 if you are looking for a bright or mirror polished finish or the MA5 if you need a satin / brushed finish.  Either disc will have the aggression to remove the ripple from the tig weld to leave either a soft satin or a pre-polished finish.

     

    2.  Removing & polishing a Good Quality Tig Welded Fillet Weld (1 or 2mm wire)

     

    Stainless Steel Fillet Welds

    If you have used a good quality wire and need to fully blend the fillet weld so it can't be seen then the GA7 combi unitised disc will have more than enough cut to remove the tig weld and at the same time you can use the sides of the GA disc to remove the weld discolouration to leave a very soft, pre-polished finish on the stainless.  

     

    Aluminium fillet welds

    On an aluminium tig weld you can step down to the GA6 which will have a fast but controlled cut which will remove the aluminium fillet weld completely to leave a very fine brushed soft satin finish.  

     

    3.  Removing & polishing a good quality tig welded fillet weld with heavier wire

     

    Stainless Steel fillet welds - Increased Wire

    In important structural welds it is sometimes necessary to use a heavier wire.  In this situation then we would recommend stepping up to the GA8 combi unitised disc.  It will still leave an excellent finish when the work is done but the extra stiffness in the heart of the disc will ensure a fast clean process whilst the outer soft density fleece will ensure a high quality finish.  

     

    Aluminium fillet welds - increased wire 

    Again on the aluminium tig weld you can step down to the GA7 combi unitised disc (rather than the GA8 on stainless) to keep the controlled cut and prevent over-aggressive removal of the fillet weld whilst still leaving a very fine brushed soft satin finish.  

     

    4.  Removing a really heavy Tig or Mig weld

    If it is a particularly heavy weld then using the TA10 RebelOne unitised to remove the fillet weld and then follow that with the GA6 Combi unitised.  To see this process explained in detail you can read / watch the blog.

     

    For best performance run at between 3,000 to 4,000 rpm on a machine such as the Cibo Finiteasy. Too fast results in premature wear, too slow you run the risk of bouncing.  

  • Why should I choose Combi Unitised?

    Labour is always the big cost and GA Combi Unitised discs will save you time and money.

     

    In the Cibo tradition of innovation the Combi Unitised discs allow you to remove a weld and apply a high quality finish which is suitable for mirror polishing in one action.  

    • Combi discs work up to 30% faster due to increased grinding speed and no wasting time switching discs.
    •  Or for high aggression fillet weld grinding use GA 6 Combi discs in partnership with the very high aggression TA10 discs.  Watch the videos in our new TA10 blog
  • What is the best process for grinding & polishing stainless steel fillet welds?

    With the launch of the new GA Combi Unitised products our recommendations have recently changed for this process.  We have detailed 4 options dependent on the size of the weld:

     

    1.  Removing & polishing a fused stainless steel fillet weld

    Option 1:  If you have fused the stainless weld and there is only a small amount of ripple to remove then we would recommend the GA 6 Combi discs.  They have enough aggression to blend away the ripple easily without the risk of digging into the metal

     

    Option 2:  For a fine satin finish the the new MA6 6mm wide discs will have the aggression to remove most, if not all of the ripple and leave a very soft satin finish

     

     2.  Removing & polishing a good quality stainless tig welded fillet weld (1 or 2mm wire)

    Option 1:  On a high quality weld the GA7 combi unitised disc will have more than enough cut to remove the tig weld and at the same time you can use the sides of the GA disc to remove the weld discolouration to leave a very soft, pre-polished finish on the stainless.  

     

    Option 2:  This is the classic Cibo Time Saving Kit process with the MA8 3mm discs followed by the SA5  to leave a perfectly smooth semi-bright blemish free weld with no ripple

     

    Option 3:  SA/7 T30 (3mm wide) and T31 (6mm wide).  With a slight finer finish the SA7 is a great option if you are heading for a bright polished finish after removing the weld

     

     3.  Removing & polishing a good quality tig welded fillet weld with heavier wire

    In important structural welds it is sometimes necessary to use a heavier wire.  In this situation then we would recommend stepping up to the GA8 combi unitised disc.  It will still leave an excellent finish when the work is done but the extra stiffness in the heart of the disc will ensure a fast clean process whilst the outer soft density fleece will ensure a high quality finish.  

     

    4.  Removing a really heavy Tig or Mig weld

    If it is a particularly heavy weld then using the TA10 unitised in combination with the GA Combi unitised is worth considering.  You can read / watch the blog here

     

     5.  Removing weld discolouration but do not need to remove the full weld

    • SA/5/T31  The most popular disc for weld colour removal and pre-polish finishing
    • MA/5/T31  A new Cibo product which is ideal for removing weld blueing to leave a fine satin finish afterwards.  The 320 grit finish left from the MA/5 means that it will also begin to shape the top of a fine ripple tig weld

     

  • What is the best process for grinding and polishing aluminium fillet welds ?

    We have detailed 3 options dependent on the size of the weld:

     

     1.  Removing & polishing a fused aluminium fillet weld

     We would recommend using the SA5 if you are looking for a bright or mirror polished finish or the MA5 if you need a satin / brushed finish.  Either disc will have enough aggression to remove any ripples from the weld without the risk of eating into the parent metal.

     

     2.  Removing & polishing a good quality aluminium tig welded fillet weld (1 or 2mm wire)

     

     Option 1:  On an aluminium tig weld you can step down to the GA6 which will have a fast but controlled cut on the aluminium tig weld and will leave a very fine brushed soft satin finish.  

     

    Option 2:  USe the SA/6/T31 unitised disc which will have more than enough aggression to remove the weld whilst leaving a fine finish.  You may choose to give a final blend with either the SA5 or MA5 dependent on whether you want a semi-bright or a fine satin finish.   

     

    3.  Removing & polishing a good quality aluminium tig welded fillet weld with heavier wire

     

     Option 1:  The fastest process is with the GA7 combi unitised disc to keep the controlled cut and prevent over-aggressive removal of the fillet weld whilst still leaving a very fine brushed soft satin finish.  

     

    Option 2:  Grind out the weld with the SA7 3mm disc and then blend the final finish with either the SA5 for a pre-polished finish or with the MA5 for a fine satin finish.  

     

  • Which is the best product for removing fillet welds on steel railings & posts?

    If you need to grind away a mig weld around the base of steel railings in preparation for powder coating or painting then the TA10 unitised discs are a great option. TA10 has a high cut rate without losing control so you can easily radius and feather out the weld such that it becomes completely hidden.  

     

    The finish left by the TA10 is more than good enough for painting directly on top of the weld.

  • What is the new TA10 unitised disc?

    When Cibo began manufacturing their own unitised abrasive range it meant that Cibo Innovation could go to another level.  

     

    TA10  Rebel One Unitised Discs: Faster Cut - Longer Life

     

    With an engineered abrasive grain, the new TA10 unitised discs are high density discs ideal for more aggressive grinding & blending of fillet welds and heavier Tig welds, whilst the fast cut rate of the TA unitised disc still leaves a clean 150 / 180 grit burr free finish.  Discs are available from stock in the following sizes:

    • TA/10/T30: 150mm diameter, 3mm wide. Ideal for for grinding narrow welds.
    • TA/10/T31: 150mm diameter, 6mm wide to radius & blend heavier Tig + Mig welds.
    • TA/10/S121R/6:  125mm diameter, 6mm wide for use on grinders (variable speed recommended)

    For removing weld discolouration & fine brush finishing, look at FA unitised discs.  

  • How quickly will the TA10 remove a stainless steel fillet weld?

     The best way to work how quick the TA10 discs work is to see it for yourself.  Follow the link to our blog to see the latest videos of the TA10 in action:  blog

    If you have finer fillet welds that are either fused or made with 0.8mm or 1mm wire then the TA10 is probably too aggressive for the application (the SA & MA unitised range are more suited to removing these welds) but if you need to put in a heavier weld and still need to radius the fillet weld then the TA10, 3mm or 6mm wide are a great option.

     

    Applications where the TA10 is proving to be a great hit with our customers are:

    • With larger stainless steel vessel manufacturing for the pharmaceutical industry where the TA10 is used for cutting & shaping the weld prior to polishing.
    • Stainless steel pedestrian footbridge work, where the welding needs to be done with heavier guage wire but the quality of the final finish is important.  
    • Food industry mixing tanks
    • Internal seam blending on chemical industry mixing vessels, to prevent entrapment
  • Which unitised discs are in the Cibo Time Saving Kits?

    The Cibo Time Saving Kits were developed by Cibo in partnership with AFS to give our customers a complete solution in a box.

    TSK02 has the products to remove a stainless tig weld and create a very soft satin finish

    Time Saving Kit Set 5 has the unitised products in the kit to remove the tig weled and create a mirror polished finish on stainless steel tube.

    • Time Saving Kit 05 uses the MA/8/T30 disc to remove the weld, the SA/5/T31 disc to blend and pre-polish followed by the MHV/5600/T31 with the PV/102 pink polishing compound to create a high quality mirror polished finish
  • Which is the best disc for polishing fillet welds?

    The Cibo RebelOne unitised discs in either the GA family or the SA5 discs will leave a finish which is abel to be mirror polished.  All you need to complete the process is our MHV/5600/T31 felt discs.

     

    MHV/5600/T31 is a 150mm diameter disc that fits directly onto the FinitEasy fillet weld grinder using the same connections as the normal unitised fillet weld grinding discs.

    We recommend using these discs with one of our polishing compounds after using the SA5 discs on your stainless steel.

    Both these discs fit on the Cibo Finit-Easy machine and other fillet weld grinders.

  • What sizes of unitised disc are available?

    Unitised abrasives discs are manufactured in pre-formed sheets which restricts the effective diameters available.  But within that restriction Cibo can make any disc diameter you need either by press cutting or water jet cutting from the sheets.  

    • Maximum effective disc diameter.  305mm although we have made them a little larger on rare occasions
    • Most common diameters 150mm and 200mm
    • Need to use a smaller diameter wheel?  You can see the range of 50 or 75mm diameter wheels here
    • Want to see the wider range of unitised wheels?  Click here (opens in a new tab)
    • Or all wheels and brushes that can fit on a bench grinder?  Click here (opens in a new tab)