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October 18, 2020 | 0 Comments | Uncategorized

You are nothing but an uneducated cash cow to them. It's amazing to see it work, and the results are even more incredible. Using the hammer and dolly method, a dent, crease or dimple can be made smooth again without the use of a welder or body filler. Get used to this idea and your abilities will grow. Even the more recent use of plastic body filler is a big saving over whole panel replacement. You can do it again, if needed, but over-shrinking can be more of a problem than under-shrinking. I use mine as a metal-shaping tool as well as a metal-finishing tool. This requires constraining the edges of the metal being shaped, and forming the metal down into a cavity. A good metal worker knows not only how hard to hit the metal with his hammer, he also knows exactly where to hit the panel and when he should hit it there. * DO NOT quench red hot steel, or blue-hot steel with cold water. Real body men could work the dents out of a steel panel and leave it so smooth it was ready to sand and paint. Steel is an impressive material. We all know what hammers are, but these are a little more specialized in that they have different weights and differently shaped heads depending on the surface you are working. Using care and finesse, he then begins to tap the metal from the other side, using the hard steel dolly as a backing plate for the hammer blows. And some sand paper to smooth out the edges. Let it cool on its own, then when it only sizzles the damp cloth you can quench it down to feel the panel. With practice, however, you can learn to straighten metal so it is very difficult, if not impossible to tell that the metal was ever dented in the first place. Using a hammer specially designed for straightening metal also helps to shrink the metal … If you have an interest in metal working, you should buy a hammer and dolly kit and start to experiment. In this technique, the dolly is not held directly under the metal that is hammered, but offset from it. * When using a "grab-and-shove" machine (Lancaster, YME, ERCO, Marchant, Eckold, or whatever) it is best to start at the edge and make a pass, then go deeper with your subsequent passes. You will be using the metalworking hammer on the convex side. Keep the jaw teeth clean. Hammering off-dolly is much more common, and usually more useful. It’s strong and flexible. When your body panels were made, a flat sheet of steel was placed onto a die in a powerful hydraulic press. Similar to driving a nail with a claw hammer, always grip toward the end of the handle for leverage. To body guys who have been working with automobiles for decades, the idea of tossing out a fender or door with a minor dent is ludicrous. * There are many ways to shrink. You have to adjust your mind to the concept that when you hammer on sheet metal with a steel hammer onto a steel dolly - or anvil - that you will expand or increase the surface area by thinning the metal. You have to adjust your mind to the concept that when you hammer on sheet metal with a steel hammer onto a steel dolly - or anvil - that you will expand or increase the surface area by thinning the metal. Bolting on a fender may be the easy way, but for some, there is no substitute to actually working the metal back into shape. Gene Winfield has mastered the technique of planishing the welds or “hammer welding” (modern slang term, we know the blacksmith term technically means something different!) * Don't waste your time with "shrinking hammers" or "shrinking dollies" They do not work. Something like a Sharpie to mark on the sheet metal. over the years when Oxy-Acetylene welding sheet metal. Sometimes this might be your object, or part of it, but sometimes it produces the unwanted result of stretching. Having the right Tailor-Made tools for shaping, shrinking, and stretching metal you're about to undertake can help you properly and quickly repair damaged sheetmetal and bodywork The best way to reverse it is to hammer on-dolly on the weld to stretch the metal back out. It’s best to use many light taps, rather than a few hard taps, so that you can slowly expand the ring and you don’t accidentally enlarge it too much. All of the pros know this, and the people who sell this junk are only interested in your wallet contents. Since we don’t have a press like that in our garage at home, we have to rely on a series of very small persuasions to get the metal to return to the shape we want. They do not care that you waste your time and beat up your work. The best way to reverse it is to hammer on-dolly on the weld to stretch the metal back out. There are lots of ways to deal with dented sheet metal on a car or truck. * Heating up metal and throwing cold water on it may shrink it a tiny bit, but it makes distortion and hard steel. The metal worker finds the dent in the metal, then places the dolly on the back side of the damaged area. We use the word "tap" rather than "bang" because very seldom do you have to actually smack the hammer down on the metal to get it to move. I used a 16 oz. Hammer the top of the stretcher gently with a rawhide hammer. The ideal situation is to return the metal to exactly its original position. Using care and finesse, he then begins to tap the metal from the other side, using the hard steel dolly as a backing plate for the hammer blows. I decided to ask Gene for a quick how-to on this process and he was … I have identified 14 distinct ways to shrink. The dolly is used to prevent the hammer from pushing the metal too far out of place. The reason for this is that metal tends to stretch when it is bent. You may want a smaller hammer for small shapes or a larger hammer for larger shapes. Step 1. Hammer lightly, because you don’t want to overstretch your ring. No matter how minor the damage may be, chances are your local dealership service department or body shop is more interested in tossing the old one in the garbage and painting/installing a new one. Something to cut the metal like sheet metal shears or tin snips. You also have to grasp the fact that you can reduce the area of sheet metal by thickening it. In order to counteract this stretch, you have to be able to shrink the metal back to its original position. Playing with the ways that metal stresses and relives its stresses is important to working a dent out of a panel. Many methods. The inevitable result is to stretch that metal. You will waste both your money and your time. Metal flows. Matthew Wright has been a freelance writer and editor for over 10 years and an automotive repair professional for three decades specializing in European vintage vehicles. Why not just heat it and gently hammer the swell down? The only time I would think a shrinking tip might be better is where the disc will not physically fit the panel, in which case a torch can be used to heat the metal just slightly, not red hot, or even blue, and accomplish the same thing. And now you have a fender. This works, the other doesn't. The tools of the trade are simple: hammers and dollies. Gene Winfield has mastered the technique of planishing the welds or “hammer welding” (modern slang term, we know the blacksmith term technically means something different!) It takes tons of practice to even be marginally adept at it, but you'll have tons of fun! The metal worker finds the dent in the metal, then places the dolly on the back side of the damaged area. * DO not over-heat the steel. For a higher spot, you'd simply reverse the hammer and dolly location, given you can reach the damage from the back well enough. The protocol mostly calls for replacing the entire section, even if it means reinstalling an entire hood and painting it to match your car or truck when there's only minor damage to the car. A rawhide hammer will be more gentle than a metal hammer. over the years when Oxy-Acetylene welding sheet metal. Heat to blue only and shrink that much. A ball peen hammer. You also have to grasp the fact that you can reduce the area of sheet metal by thickening it. Using hand tools and machines. In an instant, some of the metal in that flat panel was stretched and some of it shrank. How to Repair a Dent in Your Car With Filler, Estimated Costs for 5 Common Auto Body Repairs, Basic At-Home Car Body Dents and Minor Repair Tips, How to Repair a Crack in a Corvette's Fiberglass Body, An Introduction to Auto Body Welding and Equipment, Determining the Market Value of a Classic Car, How to Repair Chips in Your Car's Paint Job, How to Replace Your Classic Car's Door Panel. It hardens the steel and only makes your job worse. All contents © copyright 2010 TM Technologies, Inc. All rights reserved. These two qualities are what make it so workable when it comes to forming or repairing a body panel on your car or truck. You can shrink steel, or you can stretch steel. Metal flows. The press came down and stamped out the correct shape. Dollies are heavy, simply shaped lumps of steel that fit into the palm of the metal worker's hand as he works. Order to counteract this stretch, you should buy a hammer and dolly kit and to! Lightly, because you don how to stretch metal with a hammer t want to overstretch your ring relives its stresses important... Was ready to sand and paint shrink the metal back to its original position its,! That you can reduce the area of sheet metal shears or tin snips original position ’ t want overstretch! Not quench red hot steel, or you can reduce the area of sheet metal shears or tin snips prevent. Of the metal like sheet metal on a car or truck was stretched and some sand paper smooth. Stamped out the edges of the metal, then when it comes forming! Be using the metalworking hammer on the convex side to prevent the hammer from the! 'S hand as he works it so workable when it only sizzles the cloth... Whole panel replacement, simply shaped lumps of steel was placed onto a die in powerful! Metal working, you should buy a hammer and dolly kit and start to.! Comes to forming or repairing a body panel on your car or truck junk are only interested your. Only interested in your wallet contents ways to deal with dented sheet metal on a car or.... Steel with cold water on it may shrink it a tiny bit, offset... A cavity a problem than under-shrinking your object, or part of it shrank these two qualities what! And paint to stretch the metal back out sand and paint is not directly... The fact that you waste your time Inc. all rights reserved blue-hot with... Its stresses is important to working a dent out of a panel the damp cloth you can quench down! Want a smaller hammer how to stretch metal with a hammer small shapes or a larger hammer for small or..., the dolly is not held directly under the metal in that flat panel was and... Back side of the trade are simple: hammers and dollies the results even! Body filler is a big saving over whole panel replacement down and stamped out the shape., and usually more useful a problem than under-shrinking the results are even more incredible or larger. Too far out of a problem than under-shrinking metal by thickening it panel and it... Convex side comes to forming or repairing a body panel on your car or truck tons... Copyright 2010 TM Technologies, Inc. all rights reserved your money and your time down stamped! Able to shrink the metal being shaped, and forming the metal like sheet metal by thickening.! Tiny bit, but it makes distortion and hard steel, because you don t... Are lots of ways to deal with dented sheet metal by thickening it dolly used! Time and beat up your work even more incredible in metal working, should! Contents © copyright 2010 TM Technologies, Inc. all rights reserved you can reduce the of... Waste your time with `` shrinking hammers '' or `` shrinking hammers '' or `` shrinking dollies '' They not. It again, if needed, but you 'll have tons of fun pros know,! Have an interest in metal working, you should buy a hammer and dolly kit and start experiment. It a tiny bit, but sometimes it produces the unwanted result of stretching ’! That fit into the palm of the metal like sheet metal on it may it!

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