How to fix bent alloys. Come to the best Simon at allenfield eng. E -mail sales@allenfield.co.uk. Based in Didcot, Oxfordshire. Also Alloy welding undertaken see future video.
Cheers. I don't take much notice of the haters but like to put people right if they don't know what they are talking about. 😉 Or help those that would like to know or give it a try.
Dude that is some talent right there, it looks so good after! If I had the proper welding torch I would do it but I guess i'll either try taking it somewhere or getting a new one. I smashed into a curb when it was foggy out. :(
+Brandon Hayes Thank you. Not as easy as it looks but if I can do it anyone can ! We suffer with massive pot holes over here, it keeps me out of mischief ! ;)
I had a wheel repaired by Simon which was cracked and had 2 minor dents in. The wheel came back from repair with the crack still slightly visible and with the inner rim out of round and the outer edge still bent. I think he tried his best but does not have the equipment needed to get a wheel round and spinning true.
Interesting Vid, recently bent a front rim on a Sprint Car (racing incident) and don't want to throw the rim away, may use a bottle jack in combination with the rubber mallet method employed here - Thanks for posting
+CarzDeluxe Not actually curb, I just hit a big ass pothole, 2 tires got f**ked and one alloy wheel dented pretty bad, one spring broken, the car has no problem at all...
I have an infrared thermometer and am considering trying this on a bent OZ wheel. What temp in C should I aim for before hammering w/ the mallet? Nice work BTW.
+Kristopher Gainey Hi, Thank you. Without looking it up (it's many years since I did all the temperature stuff). I would start at around 180*c, See if it starts to move. Gradually increase and try again, Max. would probably be around 250*c . NO MORE as you will start to change the structure. It should still take a fair effort to move the ali with the rubber mallet. Good luck ! Cautiously at first and take it slowly. If you get it too hot then it will start to crystalize and crack.
for bends on the outside area, i'm assuming a paint job is in order for every single job? How much does a whole wheel paint job as well as a small dent fix cost? Also would choosing a different color than the current rim color cost more? What if you have to paint the whole rim anyway?
During the several hour long thermal treatment, the material properties of the subsequently produced wheel are precisely set. The thermal treatment of the casting blanks particularly enables the reinforcement of the aluminum alloy being used. It consists of three phases. Step one: solution annealing. This is done in compliance with DIN 1706 at temperatures of 480 to 550 degrees centigrade, depending on the alloy. It involves selecting a temperature at which a sufficient amount of the alloy elements are dissolved into a solid solution, to enable the strength of the alloy to increase. In the second step, quenching, the blanks are shock-cooled down to a temperature of approx. 70 degrees centigrade and are dormant in the third step, artificial aging, to achieve the desired strength values. This process requires absolute precision. If, for example, the specified maximum temperature for solution annealing is exceeded, the blanks become unusable for further processing and must be melted down again.
Frank Djeffarethree Robinson Yes what you see is gentle and progressive. Fronts are not so common but yes treat just the same. Of course you may want to re finish!
A bent wheel, no matter how good a job the repair is, will never be the same as new. You may as well spend a few extra dollars to get a new one to avoid potential future issues .
hi I hit a pot hole and bent my rim. can I just try it with a rubber hammer? or do you have to heat the rim some. or would it be best to take it to a shop.
Hi, Ali needs warming before working it as it can be brittle. Sometimes you can get away with it cold but not normally on cast as it has Been formed in the hot state.if you are not sure leave it to a shop. If the rim has been bent then it will normally break the seal on the rim , hence the leak. Hope this helps.
does anybody know if i could send my 22inch chrome rim somewhere to get it fixed? it's bent and I'm losing air in my tire. no-one around me does this😡 their telling my it's too big for the straightening machine
+Fiat x19 Magnesium wheels usually crack when trying to fix them, this is what happened to mine.... if a magnesium wheel gets bent there is a small chance to make it look as new, sadly, but how did you bend your wheel? Magnesium wheels are lighter and harder to bend than other alloy wheels.
+Cristi Ursu I've asked around a few places and they all say the same thing. They crack or split when trying to do anything to them. Its not that bad but its almost too much to use wheel weights to stop any vibration through the steering wheel. I guess they are just old. They are Cromodoras so they are from the 70's.
+Kaleb Hayhurst Yes, it may take a little time to warm up. Better to take it slow. Rule of thumb is that the ali is warm enough when the end of a match turns brown.
My life and or passengers are more valuable to me than a cheap easy fix. Will this compromise the integrity of the rim? Is it more prone to crack eventually?
Hey @simonsd1. Nice video 1st off! Secondly I have some questions that I would appreciate you answering for me. •Was that a rubber mallet or a sledge hammer? •What kind of table is that because it surprised me to see it withstand the heat? •Is that a particular torch you are using? •You said something to another person about "repairing cold" what does that mean? lol I'm sorry for all the questions, but I'm interested. Thanks
+Innocentjr Nwafor Hi, First it is a rubber mallet. Table is an engineering surface table, very heavy and old. Just oxy/acet. welding torch. Rims can be repaired cold but you need a specialist machine for this. Questions are no problem that's what it's all about.
It would if you get it too hot, it then starts to crystallise. A lot of trial and error or a digital thermometer. I have been working with metal all my life and you just know when it's ready to move. Always take it slow, better safe than sorry.
If it were hard it would have been brittle and bits and pieces would have broken off with this kind of dent which proves that is it quite ductile. I guess it is meant to be that way so that in case of an accident pieces if it don't go flying off. It being ductile I don't see why it could not be "straightened" that is brought back into its original shape or as close as possible. I would do a dye penetrant test though after the repair just to ensure there is no crack.
Joe Lucky Quite right Joe. There are quite a few wheels from a few manufactures that are brittle and crack on an impact. There are some nasty wheels out there!
BS try to balance that rim. Guarantee it will be out inner and outer causing a vibration and abnormal tire wear. You balance a tire for a reason.. FYI a tire being round has nothing to do with a bent rim.
Absolutely wrong. Ruined the heat treatment of the wheel localy, thus reducing its UTS. A bent wheel has experienced micro cracking, and is therefore very prone to fatigue failure.
robert webb Totally wrong. Know your metal before commenting, Alloys are not heat treated just cast and many full of rubbish in the mix. Fatigue failure, maybe on something that is being push or pulled. Low running rotation!!! Maybe not. Bent rim's are usually compressed and bow out some where else on the rim. Maybe experiment first eh?
+simonsd1 damn, i wish you replied a few days ago, i got charged £65 to get it machine pressed which caused it to crack and now i have to spend another £25 getting it welded. i shall keep you in mind for future reference though!
+Kizza B Sorry, I don't always look on here. Pressing cold can crack the alloy. Warming keeps the metal in a malleable state but if heated to much it will crystalize and crack also. I also weld alloys too. £25 + vat. Yes please remember us for the future.
for normal driving, this wheel should be fine! but don't think you can do this to a supercar wheel and drive safely at 150+. looks can be deceiving when it comes to strength, and reliability of metals once they've been impacted. People do this to scooter wheels all the time with no issues...but those are scooters, not 4k lbs of car missile.
hit a tempered steel hammer to another tempered steel hammer is extremely dangerous you can lose an eye doing this you need a median or proper eye wear.
this wheel will never work again don't repair that trash trow it away, bending this kind of damage with heat will change the alloy property and any small bump will bent it again
This guys ignorance is outstanding !!! Wheels from BBS are able to withstand many times the loads set out in European ECE standards with a unique range of quality and design features. We lay the foundation for this technology before series production. Using FEM analysis and computer simulations, wheel properties are determined and optimised during the design stage. Prototypes have to demonstrate their quality on laboratory test benches under extreme conditions. During series production, an effective quality assurance system guarantees that each wheel is of first-rate quality. We have received certification according to DIN EN ISO 9001 for effective quality management and ISO TS 16949, the international quality standard for the automotive industry. And to prove that environmental protection and resource conservation play an important role at BBS, the company has been awarded the ISO 14001 certificate for environmental management.
robert webb Well thank you for the criticism. I don't remember slating bbs wheels at any point, but maybe I was wrong. I myself would agree that BBS wheels are very good and have never had to work on one in 30 years. Oh no, I have it was off a racing car and was a right mess. sorted it out for the customer though and he was very happy not to have to fork out for a new one. The wheels that generally need welding are BMW and jaguar. BMW are way too hard and jaguar's are just made of rubbish and way too soft. I don't think that their testing are anywhere near as vigorous as stated by yourself. Not all wheel manufactures standards are as high as yours. We offer a service and the video is here for help to those that may want to have a go themselves, as many countries do not have a local workshop and appreciate advise. Please keep your slating for those that are slating you. Thank you for watching though. 😎
Man u did a great job that some old school talent! pay no mind to the haters ! thank you for putting up a video of thise helps me out!
Cheers. I don't take much notice of the haters but like to put people right if they don't know what they are talking about. 😉 Or help those that would like to know or give it a try.
it's fun to watch a proper craftsman at work. great video. I need to have my little Polo alloys refurbished soon.
Cheers ! Bring them in if you are around
Always wondered what Nigel Farrage was going to do after brexit!
Well I had to do something, just changed my name.
Good Job.
Old Video but interesting.
Greetings from germany
worked for me. thanks.
a proper medieval blacksmith haha
good on you Simon!,,,keep up the good work!
This is soo amazing great work!
Thank you !
nice rim job
Cheers
I tried to fix with hammer only and no heat.. it cracked. Now I learned. Thank you for the video
That's no problem. Rubber mallet is a must. Don't over heat, gently does it.
Great job 👍😎
Dude that is some talent right there, it looks so good after! If I had the proper welding torch I would do it but I guess i'll either try taking it somewhere or getting a new one. I smashed into a curb when it was foggy out. :(
+Brandon Hayes Thank you. Not as easy as it looks but if I can do it anyone can ! We suffer with massive pot holes over here, it keeps me out of mischief ! ;)
good job sir..
Thank you!
Spot on
I had a wheel repaired by Simon which was cracked and had 2 minor dents in. The wheel came back from repair with the crack still slightly visible and with the inner rim out of round and the outer edge still bent. I think he tried his best but does not have the equipment needed to get a wheel round and spinning true.
have you tried using the torch to melt the mallet head better on the handle?
good job.
Is that just oxygen acetylene with a brasing or welding tip. I may have to attempt that I have 4 bent rims that vibrate like hell.
Muy buen trabajo se nota que es el resultado de la experiencia
Interesting Vid, recently bent a front rim on a Sprint Car (racing incident) and don't want to throw the rim away, may use a bottle jack in combination with the rubber mallet method employed here - Thanks for posting
No problem.
If you use a bottle Jack make sure you make some wooden curved pads to push on the wheel.
As a by hand repair it was within .50mm of ovallity and parallel front to back. Very cheap repair with very little if any weighting needed.
how much to straighten my rim ramed into a curve
Is anyone else here because they rammed their car into curb?
+CarzDeluxe Probably quite a few or down pot holes, that's the favourite.
+CarzDeluxe Not actually curb, I just hit a big ass pothole, 2 tires got f**ked and one alloy wheel dented pretty bad, one spring broken, the car has no problem at all...
lol yea
:'( yes
It was a fair sided rock, that was at the side of a narrow country lane =(
I have an infrared thermometer and am considering trying this on a bent OZ wheel. What temp in C should I aim for before hammering w/ the mallet? Nice work BTW.
+Kristopher Gainey Hi, Thank you. Without looking it up (it's many years since I did all the temperature stuff). I would start at around 180*c, See if it starts to move. Gradually increase and try again, Max. would probably be around 250*c . NO MORE as you will start to change the structure. It should still take a fair effort to move the ali with the rubber mallet. Good luck ! Cautiously at first and take it slowly. If you get it too hot then it will start to crystalize and crack.
for bends on the outside area, i'm assuming a paint job is in order for every single job? How much does a whole wheel paint job as well as a small dent fix cost? Also would choosing a different color than the current rim color cost more? What if you have to paint the whole rim anyway?
Hi, sorry only repair the metal. Paint is not my thing. Do my own but not others. There are people that can do that better.
Thermal Treatment
During the several hour long thermal treatment, the material
properties of the subsequently produced wheel are precisely set. The
thermal treatment of the casting blanks particularly enables the
reinforcement of the aluminum alloy being used. It consists of three
phases. Step one: solution annealing. This is done in compliance with
DIN 1706 at temperatures of 480 to 550 degrees centigrade, depending on
the alloy. It involves selecting a temperature at which a sufficient
amount of the alloy elements are dissolved into a solid solution, to
enable the strength of the alloy to increase. In the second step,
quenching, the blanks are shock-cooled down to a temperature of approx.
70 degrees centigrade and are dormant in the third step, artificial
aging, to achieve the desired strength values. This process requires
absolute precision. If, for example, the specified maximum temperature
for solution annealing is exceeded, the blanks become unusable for
further processing and must be melted down again.
I'm just here for the best rim job ever
thefastkidonayamaha 625 excellent, was it good
can this technique be appiled to just the outer lip? just not as aggressive, nice and gentle? simonsd1
Frank Djeffarethree Robinson Yes what you see is gentle and progressive. Fronts are not so common but yes treat just the same. Of course you may want to re finish!
A bent wheel, no matter how good a job the repair is, will never be the same as new. You may as well spend a few extra dollars to get a new one to avoid potential future issues .
I would agree with this but the price difference can be extreme!
Usually a repair is urgent. Waiting for a new rim may not be an option
how can I get small bends out I have a bend on the lip of my rim and it drives me nuts. should I just take a hammer to it ?
No don't. You may be able to use a rubber mallet on small bends cold with the tyre on but there is a chance of cracking.
How do you manage to bend the back side of a wheel. Alloy wheels are heat treated and should not be repaired. They make lovely hose hangars.
They do make good hose hangers!! Inner rim usually bends as it does not have the support like the outer rim.
"the best rim job ever"
oldschool
Can you make video on how to repair steel rims heavy bend.
Hi,
Bent steel rims, a whole different ball game. You need to heat and use formers to regain shape.
hi I hit a pot hole and bent my rim. can I just try it with a rubber hammer? or do you have to heat the rim some. or would it be best to take it to a shop.
I am also losing air in my tire but the dent doesn't look that bad and it's on the inside of the rim.
Hi, Ali needs warming before working it as it can be brittle. Sometimes you can get away with it cold but not normally on cast as it has Been formed in the hot state.if you are not sure leave it to a shop. If the rim has been bent then it will normally break the seal on the rim , hence the leak. Hope this helps.
+simonsd1 thanks it does.
Structural integrity of the alloy unchanged?
+Megan Berry Hi, Yes at the low temps yes. Too hot and it will change. Any cracks will soon become apparent as it is warmed up.
does anybody know if i could send my 22inch chrome rim somewhere to get it fixed? it's bent and I'm losing air in my tire. no-one around me does this😡 their telling my it's too big for the straightening machine
Hi yes we can straighten it but it will damage the chrome. Send a pic to our email address and I will get back to you.
what torch is he using ?
turbotimm Just a large oxy/ac torch.
Is this sort of work doable on magnesium wheels?
+Fiat x19 Magnesium wheels usually crack when trying to fix them, this is what happened to mine.... if a magnesium wheel gets bent there is a small chance to make it look as new, sadly, but how did you bend your wheel? Magnesium wheels are lighter and harder to bend than other alloy wheels.
+Cristi Ursu I've asked around a few places and they all say the same thing. They crack or split when trying to do anything to them. Its not that bad but its almost too much to use wheel weights to stop any vibration through the steering wheel. I guess they are just old. They are Cromodoras so they are from the 70's.
How the hell they manage a dent like that?
Tybok C I have no idea, but I have seen worse! just do the fixing.
Can I do this with a butane torch?
+Kaleb Hayhurst Yes, it may take a little time to warm up. Better to take it slow. Rule of thumb is that the ali is warm enough when the end of a match turns brown.
+Kaleb Hayhurst Also, burn the paint off and wire brush first as it can act as a mild heat sink and will take a while to get it hot enough.
Would a heat gun get the alloy to enough temp to move a slight bend?.... by the way that was very impressive bud👍🏻
Hi,
Heatgun probably not. Need to get the ali to around 200 -300c.to work it. No hotter though
@@simonsd1 okay thanks very much , I’ll take it to a specialist!👍🏻....
Never send your wheels to this guy lol
***** Why? I've done thousands and no problems. Just got to know your metal and temps to work with.
Sorry, it was just a joke.
+simonsd1 I have a question friend, if my rims also have a bend but are Chrome 22 inch rims will my chrome loose it's shine color?
Alex Alejandre Hi Alex. Yes the chrome will be discoloured using this method. You would need a company that specializes in repairing cold.
@@vvlter if that's a joke, you suck!
My life and or passengers are more valuable to me than a cheap easy fix. Will this compromise the integrity of the rim? Is it more prone to crack eventually?
Ron cab Not really. If it is minutely cracked then this will come out when straightened. The crack can then be cut out and welded.
Hey @simonsd1. Nice video 1st off! Secondly I have some questions that I would appreciate you answering for me.
•Was that a rubber mallet or a sledge hammer?
•What kind of table is that because it surprised me to see it withstand the heat?
•Is that a particular torch you are using?
•You said something to another person about "repairing cold" what does that mean?
lol I'm sorry for all the questions, but I'm interested. Thanks
+Innocentjr Nwafor Hi,
First it is a rubber mallet.
Table is an engineering surface table, very heavy and old.
Just oxy/acet. welding torch.
Rims can be repaired cold but you need a specialist machine for this.
Questions are no problem that's what it's all about.
+simonsd1 Just a question, you were scrubbing the rim with a brush and I believe some material. What material were you using if I may ask
+simonsd1 Just a question, you were scrubbing the rim with a brush and I believe some material. What material were you using if I may ask
+A Hi, Just scrub with a wire brush to remove old paint etc. to leave it clean.
how much would this be to pay someone to do it?
I charge £18 to straighten a wheel like this one.
how much does the repair cost
+Dickey Moore Hi,We charge £18 + vat.CheersSimon
how much are these type of repairs usually?
Hi, this would be £18 +vat
So if the rims are of the car, what's the best way to destroy Alloy rims so that no one else in future can use them?
Anthony Franken I don't know tell me, we can all learn something new!
Is that a lead hammer?
Hi, no it’s a rubber mallet
Best rim job, hehe
This should be called.... "how to permanently destroy an alloy wheel"
Casey Walters Still seems to be ok! Sorry to disappoint you.
Wouldn't the heat destroy the integrity of an aluminum wheel?
It would if you get it too hot, it then starts to crystallise. A lot of trial and error or a digital thermometer. I have been working with metal all my life and you just know when it's ready to move. Always take it slow, better safe than sorry.
If it were hard it would have been brittle and bits and pieces would have broken off with this kind of dent which proves that is it quite ductile. I guess it is meant to be that way so that in case of an accident pieces if it don't go flying off. It being ductile I don't see why it could not be "straightened" that is brought back into its original shape or as close as possible. I would do a dye penetrant test though after the repair just to ensure there is no crack.
Joe Lucky Quite right Joe. There are quite a few wheels from a few manufactures that are brittle and crack on an impact. There are some nasty wheels out there!
SAFETY GLASSES NUMBSKULL !!!
badstimpy If you like wear them.
niccee.... did he get it 100% round ??
doesn't matter as long as it holds air and the tire is round
unemployedhr4213 How true, thank you!
BS try to balance that rim. Guarantee it will be out inner and outer causing a vibration and abnormal tire wear.
You balance a tire for a reason..
FYI a tire being round has nothing to do with a bent rim.
SparkyBC People fix bent rims every day. you balance them with offsetting weights
SparkyBC I would love to see a perfectly round tyre!
Absolutely wrong. Ruined the heat treatment of the wheel localy, thus reducing its UTS. A bent wheel has experienced micro cracking, and is therefore very prone to fatigue failure.
robert webb Totally wrong. Know your metal before commenting, Alloys are not heat treated just cast and many full of rubbish in the mix. Fatigue failure, maybe on something that is being push or pulled. Low running rotation!!! Maybe not. Bent rim's are usually compressed and bow out some where else on the rim. Maybe experiment first eh?
Correct. They should not be given any major repair.
You can never get it 100% round this way.
Adding weights doesn't always fix a so called bent rim balance issue once supposedly fixed.
Some can't be fix like this one..
SparkyBC Well it was fixed and still around with no problems.
how much does this cost?
+Kizza B Hi, I charge £20 + vat.
+simonsd1 damn, i wish you replied a few days ago, i got charged £65 to get it machine pressed which caused it to crack and now i have to spend another £25 getting it welded. i shall keep you in mind for future reference though!
+Kizza B Sorry, I don't always look on here. Pressing cold can crack the alloy. Warming keeps the metal in a malleable state but if heated to much it will crystalize and crack also. I also weld alloys too. £25 + vat. Yes please remember us for the future.
for normal driving, this wheel should be fine! but don't think you can do this to a supercar wheel and drive safely at 150+. looks can be deceiving when it comes to strength, and reliability of metals once they've been impacted. People do this to scooter wheels all the time with no issues...but those are scooters, not 4k lbs of car missile.
hit a tempered steel hammer to another tempered steel hammer is extremely dangerous you can lose an eye doing this you need a median or proper eye wear.
+Cameron Thompson Where are they hammers, bit of a random comment. Yes hitting two hammers together would be silly.
this wheel will never work again don't repair that trash trow it away, bending this kind of damage with heat will change the alloy property and any small bump will bent it again
+Kilian Murmann So many metallurgist's out there, aren't there.!!!!!!!!
Also taking a measurement from the lip is not the right way ive done over 10,000. Wheels this wheel was way over heated !!
No way in hell that rim would balance.. Sure it will appear almost back to shape. A flat table and a torch will not be true, and will not be 100%.
SparkyBC No maybe not 98/99%
This guys ignorance is outstanding !!! Wheels from BBS are able to withstand many times the loads set out in
European ECE standards with a unique range of quality and design
features. We lay the foundation for this technology before series
production. Using FEM analysis and computer simulations, wheel
properties are determined and optimised during the design stage.
Prototypes have to demonstrate their quality on laboratory test benches
under extreme conditions. During series production, an effective quality
assurance system guarantees that each wheel is of first-rate quality.
We have received certification according to DIN EN ISO 9001 for
effective quality management and ISO TS 16949, the international quality
standard for the automotive industry. And to prove that environmental
protection and resource conservation play an important role at BBS, the
company has been awarded the ISO 14001 certificate for environmental
management.
robert webb Well thank you for the criticism. I don't remember slating bbs wheels at any point, but maybe I was wrong.
I myself would agree that BBS wheels are very good and have never had to work on one in 30 years. Oh no, I have it was off a racing car and was a right mess. sorted it out for the customer though and he was very happy not to have to fork out for a new one.
The wheels that generally need welding are BMW and jaguar. BMW are way too hard and jaguar's are just made of rubbish and way too soft.
I don't think that their testing are anywhere near as vigorous as stated by yourself. Not all wheel manufactures standards are as high as yours.
We offer a service and the video is here for help to those that may want to have a go themselves, as many countries do not have a local workshop and appreciate advise.
Please keep your slating for those that are slating you.
Thank you for watching though. 😎
Publicly slated for not slating BBS. Sad world 😂
wheel is super weak now !!!!!!!!!!!!!
I'm afraid not, sorry. Would be if you get it too hot!
Is anybody else here because you let your girlfriend drive your car? Having a real great da let me tell you.
Best rim job ever! LMAO!!!
You can never get it 100% round this way.
A rim is purposly never 100% round