|
Title: Laser Aluminium Repair... Post by: davidwheeler on 09 February, 2011, 05:44:35 PM Is this the answer to a Lambda block's prayer? The video looks very impressive and I wonder if anyone has had any experience with it.
http://www.machinemart.co.uk/shop/product/details/aluminium-repair-starter-kit/path/body-repair-kits David Title: Re: Laser Aluminium Repair... Post by: williamcorke on 09 February, 2011, 06:02:38 PM Amazing demonstration video.
I've got an early Alfa 750 block that is U/S with a head stud turning - looks like this technology could be a much cheaper, easier (more at-home) way to fix the problem than a full strip down and machining / heli-coiling at a shop. Might give that a go. Looks like it could take the tension of a head bolt, and if it won't I've only wasted £25 and the cost of a head gasket. Title: Re: Laser Aluminium Repair... Post by: thecolonel on 09 February, 2011, 07:32:52 PM I bought the kit from Frost, read the small print you have to heat the item to be repaired
and you certainly can't get enough heat into anything bulky with a blowtorch. I gave it up as a bad job, after several rather futile attempts Geoff Title: Re: Laser Aluminium Repair... Post by: williamcorke on 09 February, 2011, 09:19:09 PM Would you call an engine block bulky?
Shame. If it sounds too good to be true... Title: Re: Laser Aluminium Repair... Post by: fay66 on 10 February, 2011, 12:59:40 AM Would you call an engine block bulky? Shame. If it sounds too good to be true... I'm sure it wasn't being sold by Laser when I saw an actual demonstration at the Silverstone Classic Car Day 2 years ago, doing exactly some of what was shown in the video, including repairing threads in aluminum using only a blow torch, somewhere I have the spec sheet for this product and it has a low melting point for use with the blowlamp, but it was as strong as shown once repaired. I think it was a couple of Germans who were selling it at the time, and there were a lot of mightly impressed people. I'll have a look and see if I can find the spec sheet. Brian 8227 8) Title: Re: Laser Aluminium Repair... Post by: davidwheeler on 10 February, 2011, 11:05:28 AM Further research. A pdf is available at http://www.lasertools.co.uk/news/pdf/4707_PIS.pdf The melting point of aluminium is 660C so the block would need to be heated to 400C. I guess you could do this with an oxyacetylene flame but it would be safer to find someone with a big oven. The demo is on a small block not something the size of a Lambda and I would be very nervous of melting the block itself. I will have words with my local wizards and report back.
Title: Re: Laser Aluminium Repair... Post by: DavidLaver on 10 February, 2011, 12:12:04 PM I saw the coke can demo at a model engineering show. As quick and easy as in the video - if you ever needed to repair a coke can ;) David |