justpen
912
Thanks to everyone... you would not believe..
Thanks all,
You would not believe why I posted my request for info.
I am in China at a factory and we are having problems finishing stainless steel on fuel tankers... and I have been trying to get a photo off the web of the circular finish that is often used on truck bodies and semitrailers.... to describe this finish of pearlage to the factory management.
After searching many sites I could not find a photo... and then thought of the thing that is near to my heart... a watch movement... hence my question... your answers .... and a different search on Google...... gave me the photo I needed....... to get my message across.
Amazing how useful being a watch lover, with connections to a great watch site, can help out in every day business.
kindest regards and many thanks,
Jack
What is the correct word or term to describe the..
Hi All, Can someone please tell me what the correct term, or word, is to describe the pattern which is formed by a series of multiple closely grouped circular polish marks. This pattern is often seen on parts of the movement. kindest regards, Jack
Are you talking about...
... perlage ? You can see an example of perlage (the overlapping circular graining) in this picture of the caliber A07M in a Habring2 jumping second. This photo is courtesy of the Habrings. Cheers, Daos...
I always used to call this "engine turning" until
Daos told me perlage sounded better. She was right! Best, Jed
Almost everything sounds better in French!
Hope you are having a fun 4th! We are grilling hotdogs now for chilidogs! Daos
To be honest with you...
I think everybody says "Perlage" even in english... when I discuss with the brands, I've never heard "engine turning". Fr.Xavier
"Engine Turning" has 2 meanings in English...
French English perlage =engine turning guillochage =engine turning As we know perlage and guillochage have next to nothing to do with each other which is why in watchmaking circles the French "perlage" and "guillochage" are very often used to avoid ambigu...
Thanks Don!
That's about my understanding as well, but I've also heard American machinists call it "spotting". They seem to mostly think it's a cover-up technique for sloppy machining however. _john
True, John
My machinist friends have the same opinion. There's no real reason for it. For example, on the engine-turned dash shown in one of the photos in this thread, it's so it doesn't just look like a slab of aluminium.
Xavier, engine turning is...
Xavier, engine turning is used in the motor industry and other similar industries. for example a hand built super car may have 'engine turned aluminium inserts' in the dashboard. there was a large british luxury car from the 50's, the name i forget, but t...
Cars with perlage
To all: I think you can call it whatever you like, I like to call it perlage or circular graining. I think engine turning refers too much to the gullioche on dials. To Graham: I agree, fashionable cars in the motor industry do have "circular graining" on ...
Patrick, my memory is...
Patrick, my memory is poor, but my mate who comes to drink tea every day is 60 and a total petrol head. a bit of a dinosaur, but has the memory like an elephant. i've learnt so much from him about classic cars. he mentions a name and i google it. best Gra...
Patrick, the car wih the engine turned bulkhead........
i've just spoken to my mate and his recollection is that it was a Daimler and either a Conquest or majestic from the 50's. the one with the 4.5litre V8 in. it was actually an aluminium bulkhead fully engine turned. a work of art that only the mechanic saw...
Perlage
If you look at the wonderful series of articles on Bulgari watchmaking last month, there is a video which actually shows a watchmaker creating perlage on a balance wheel. It is my favorite decorative treatment. xx DD
Thanks to everyone... you would not believe..
Thanks all, You would not believe why I posted my request for info. I am in China at a factory and we are having problems finishing stainless steel on fuel tankers... and I have been trying to get a photo off the web of the circular finish that is often u...