1688 gaoke east road, pudong new area, Shanghai
1688 gaoke east road, pudong new area, Shanghai
201525 ensp 0183 enspthe fatigue life of asdeposited welds One of those techniques is grinding the toes of the welds Two distinct types of grinding tools have been tested disc grinders and burr grinders The primary point of this method is to create a better weld angle and or a better toe radius The grinding methods under consideration here can
Whether you re looking for speed easeofuse or long abrasive life our fiber discs flap discs and depressed center grinding wheels take down welds quickly to move your project onto the next step Partner with 3M to take advantage of decades of abrasive innovation and the industry s top weld grinding technology and expertise
24 ensp 0183 ensp Grinding welds smoothly can be challenging Mark Simpson shares some of his grinding tips to help ensure your success Looking for more classic
grinding down welds 08162009 07 59 PM Hello I am I am new to the board and I am wondering how many times can you grind down a weld and reweld on mild steel before it does something to the metal Will it make it weaker The reason I ask is because I am not happy with the welds on my car frame I am using a mm185 with the settings on 4 and 4
201591 ensp 0183 ensp gt gt gt Cutting and Grinding Equipment lt lt lt Not infrequently a welder has to cut metal for a repair job or prepare some fresh stock for welding OxyFuel cutting has stepped up to the task for more than a half century but today you have other choices to get the job done
ensp 0183 ensp grinding down the welds thin wall material will most definately weaken the joint if it s somthing thick welded to something thick the penetration is probably enough to where it shouldn t matter dwrlhc 6 larouchedem Joined
Just as different cutting tools are designed for different applications different grinding discs are designed for different metals For instance some welds in high strength abrasive resistant steels have been known to be ground down best with specialized discs that can chisel or chew away at the hard high tensile weld metal
Fillet welds are usually designed so that no grinding is needed sometimes it is prohibited such as in some roll cage applications because of the risk of thinning the throat too much if there are points of insufficient penetration into the root but the primary reason isn t strength it is cost
ensp 0183 ensp Depending on your application and NDT requirements if the welds need DPI it would probably be best to conduct the test prior to grinding the fillets down Ballbearing 11 24 AM
2004111 ensp 0183 enspThe down side is that they wear out faster than steel grinding disks You definitely have to wear safety glasses and a face shield would be better always a good idea in any case There is also an additional debris clean up problem but they can really take off the material I assume welding supply places have the aluminum grinding disks
An angle grinder with normal grinding wheel to knock the tops off of the weld beads switching to a flap disc to finish grinding the welds down and smoothing things out The air die grinder with a cutoff wheel has it s advantages less heat buildup but is time consuming it is best used in tight spots
Whether you re looking for speed ease of use or long abrasive life our fiber discs flap discs and depressed center grinding wheels take down welds quickly to move your project onto the next step Partner with 3M to take advantage of decades of abrasive innovation and the industry s top weld grinding technology and expertise
ensp 0183 ensp The issue I had was grinding down the welds Man was that tough and noisy I used a 4 quot grinder and it worked ok I had the best success with those little 2 quot sanding pads on the end of my angle grinder I also tried one of those flapper discs on the 4 quot grinder but it really didn t help much What do you guys use to grind down your welds
24 ensp 0183 ensp Difficult to reach welds – fillet welds that require clean up Decorative surface finish requirements Bonded abrasive thin wheels grinding wheels Welds larger than 189 in wide by 189 in high – use in diameter or larger to reduce the number of wheel changes needed
29 ensp 0183 ensp This will describing how you blend out weld on a flat surface The first step is to have a good weld good Fit up parts need to be aligned perfectly before welding no porosity gas bubbles in
How to Grind Aluminum Welds 2000 We grind then sand aluminum to remove welds and blend in hardware so they are not evident after top coating with either liquid or powder To achieve this we use a wax stick on the grinding disc to prevent loading up the disc with aluminum
ensp 0183 ensp Originally posted by alteredimage I would recomend leaving an open root if you are going to be grinding down the welds so you get good penetration Chamfering the ends of a butt weld joint or part of a fillet aids in penetration and helps maintain a stable arc just to expand on what alteredimage has correctly stated just like butt
Just as different cutting tools are designed for different appliions different grinding discs are designed for different metals For instance some welds in highstrength abrasiveresistant steels have been known to be ground down best with specialized discs that can chisel or chew away at the hard hightensile weld metal
RE Grinding of Fillet Weld JNieman Aerospace 14 Dec 15 15 44 If the architect wants to lessen the visible weld and insists on a nearflush finish shape then I would specify bevel welds or comparable in order to salvage the required throat depth after the finishing operation
WOW I just took a look Thanks for all the replies All very helpfull I should have been more specific When I repair older alluminum castings some times I have to grind out the weld and do it again do to all the old oil and crap in the original casting for me the grinding out never goes well the stones load or just don t cut well then I have to clean it all up again and weld again
ensp 0183 ensp The grinding on these can easily take 3 hours for a set I would love to find a machine where I could drop these in have it knock down the welds to
2017414 ensp 0183 enspDepending on your appliion and NDT requirements if the welds need DPI it would probably be best to conduct the test prior to grinding the fillets down Ballbearing Mar 29 2017 11 24 AM
1 ensp 0183 ensp gt gt gt Cutting and Grinding Equipment lt lt lt Not infrequently a welder has to cut metal for a repair job or prepare some fresh stock for welding Oxy Fuel cutting has stepped up to the task for more than a half century but today you have other choices to get the job done
If you have ever wondered whether a belt sander would be a good tool for grinding down a weld bead in a hard to reach area wonder no more The hand held version of this tool commonly called a finger belt sander or a file belt sander is portable and equipped with a narrow belt to get into tight areas see Figure 1
grinding down welds 2009 07 59 PM Hello I am I am new to the board and I am wondering how many times can you grind down a weld and reweld on mild steel before it does something to the metal Will it make it weaker One thing to make note of is that if you are grinding out entire welds its a safe bet they were probably closer to
To study the effect of grinding treatment on deck fatigue performance of U rib and roof welds in steel bridge decks eight specimens of U rib and roof welds were manufactured The shape and metallography of welded specimens were measured to ascertain their form characteristics and microstructure after grinding
ensp 0183 ensp The down side is that they wear out faster than steel grinding disks You definitely have to wear safety glasses and a face shield would be better always a good idea in any case There is also an additional debris clean up problem but they can really take off the material I assume welding supply places have the aluminum grinding disks
ensp 0183 ensp However all codes I am aware of have a clause where the inspector examiner can terminate a weld test if there are questions over the welders ability eg excessive grinding grinding of every pass I have personally performed hundreds of weld tests over the years ASME IX BS EN287 AS NZS 3992 AWS D1 1 AS 1554 NZS 4711 both piping and
grinding down welds and good body filler November 13th 2010 08 57 PM i was wonder what people use to grind down some welds and than what body filler they use to finish smoothing them out with also what good to use on bumpers and rest of the car body filler wise The Original Originally
ensp 0183 ensp Yes It s actually required if the reinforcement exceeds the profile acceptance criteria in Figure 5 4 It could also be advantageous to remove all stress risers and to achieve better UT results if the weld s are mechanically ground smooth and no additional cover pass is applied if those are a consideration 5 24 4 Groove or Butt Welds Groove welds shall be made with minimum face
ensp 0183 ensp No grinding needed Really If you weld it hot enough you can fill the lil pocket up and the molten metal will lay flat Now If you are timid and reduce the heat you will get alot of cold buildup that doesnt do anything for the weld joint Just something to grind or sand down Bump up the heat for the plug welds they can take alot of heat
201525 ensp 0183 enspWhy Passivate Stainless Steel and What Happens If You Don t By Patrick H Banes Astro Pak Corporation i e severe weld discoloration or sugared welds Cutting grinding and mechanical polishing also alters the stainless steel surface and can affect the passive The system is down the passivating contractor is
Steel grinding family of products Professionals in the metal fabriing and finishing industry know that when comes it comes the time to grinding Walter Surface Technologies sets the standard If you need to take down welds faster and with more ease or if you are simply looking for a wheel that will outlast all others while reducing costs
Use the grinding wheel if you want to grind out welds clean up cuts and prep metal for welding since you need bare shiny metal to weld We buy angle grinder grinding wheels 10 at a time and that quantity can do most of the typical fabrication projects on a single truck The grinding wheel is very effective at cleaning rust down to
2020514 ensp 0183 enspWhen you re on a budget and don t have much to smooth down the Kseibi flap discs perform well Just don t expect too much Reasons Not to Buy Aluminum Oxide is the weakest least robust surface for a flap disc Buy for the light grinding of welds and polishing In Conclusion A good entry level flap disc and should do a job for you
201318 ensp 0183 enspI ve noticed a few threads with references to grinding down the welds on the headers for a little bit of HP increase Not sure which welds they are talking about Also why does grinding them down increase HP Would like to know science behind something before I go grinding away
ensp 0183 ensp Any tips for grinding down welds dwa 1 dwa Member Messages 11 Newcastle UK It should be kind of straightforward you might think but after welding some patches into the nosecone of my mates Fordson Major tractor I found it difficult to actually lose the welds and found the grinder was taking too much of the surrounding metal
ensp 0183 ensp Grinding sheetmetal mig welds I used a die grinder with a cut off wheel to knonk the weld down a bit they provide great cutting and minimal frictionm ie heat then you can use a 4 quot flap wheel but dont work any one spot to long as the metal will oil can Its also a good idea to keep a damp rag around to coolthe metal down as you grind
2010531 ensp 0183 enspNo grinding needed Really If you weld it hot enough you can fill the lil pocket up and the molten metal will lay flat Now If you are timid and reduce the heat you will get alot of cold buildup that doesnt do anything for the weld joint Just something to grind or sand down Bump up the heat for the plug welds they can take alot of heat
Grinding welds 10172008 01 13 PM Does the built up material of the weld offer any benefits or should all welds be ground down Does it weaken the weld if you grind it down Tags None Sberry Senior Member Join Date Mar 2003 Posts 11659 Share Tweet 2 10172008 05 11 PM
An angle grinder with normal grinding wheel to knock the tops off of the weld beads switching to a flap disc to finish grinding the welds down and smoothing things out The air die grinder with a cut off wheel has it s advantages less heat build up but is time consuming it is best used in tight spots
20191023 ensp 0183 enspGrind Your Welds With Pride If That s The Way You Do It I think Jenny is trying to explain away grinding down her welds as more of an aesthetic thing Which is legit in welding say
27 ensp 0183 ensp When you re on a budget and don t have much to smooth down the Kseibi flap discs perform well Just don t expect too much Reasons Not to Buy Aluminum Oxide is the weakest least robust surface for a flap disc Buy for the light grinding of welds and polishing In Conclusion A good entry level flap disc and should do a job for you
5 ensp 0183 ensp the fatigue life of as deposited welds One of those techniques is grinding the toes of the welds Two distinct types of grinding tools have been tested disc grinders and burr grinders The primary point of this method is to create a better weld angle and or a better toe radius The grinding methods under consideration here can
200419 ensp 0183 enspOriginally posted by alteredimage I would recomend leaving an open root if you are going to be grinding down the welds so you get good penetration Chamfering the ends of a butt weld joint or part of a fillet aids in penetration and helps maintain a stable arc just to expand on what alteredimage has correctly stated just like butt
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Steel grinding family of products Professionals in the metal fabricating and finishing industry know that when comes it comes the time to grinding Walter Surface Technologies sets the standard If you need to take down welds faster and with more ease or if you are simply looking for a wheel that will outlast all others while reducing costs
ensp 0183 ensp I got in on the 4x4 Labs Bumper Group Buy and looking forward to building my own rear bumper but my welding skills are mediocre at best I do get good penetration and adhesion and my stuff don t break but my welds just look like crap So I want to make the bumper look nice and am looking at grinding everything down and smoothing it out