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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
338 Marlin Express-Lever Action
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<blockquote data-quote="Trickymissfit" data-source="post: 709416" data-attributes="member: 25383"><p>I think the York PA plant is purely an assembly plant, and also a weldment plant. Never been in that one, so what I say here is purely here say. Weldment areas tend to be dirty even when doing nothing but MIG and TIG. </p><p> </p><p>The engine assembly areas were relatively clean for what they were, but also kinda "UN" engineered. About like what we'd be doing in a garage workshop. Every operation was done by hand with no serious gauging processes to ensure good quality controll (the exception being the fly wheels to pin alignment, and even that could have been far better). The folks in there worked very steady and there seemed to be no wasted time. But could have been better. When I took him thru an area that was put together in 1982 (assembly) he was stunned. How much easier and faster the processes were for setting clearences and alignments just blew him away. The assembler just put the rotating pack inside a case and a machine made a series of measurments, and he then added the spec'd shim packs for the bearings. Takes about three minutes. I did take him for a VERY swift walk thru of one our many gear cutting areas and he said it was a lightyear better than anything he'd ever seen. He asked me about talorences and involute profile accuracey. I was vague for a reason. But I did tell him we were cutting gears at less than .001" run out. He wanted to see the heat treat areas, but that was too closely guarded. (he was within 25 feet of a couple and didn't recognize them). He did ask me how pinion gears we cut in one cell a day, and I told him a little under 900 a shift. Or close to 1.8 gears a minute finished. Actually much more than that as you rarely had five hobs running at the sametime) I wouldn't let him close to any of the final finishing for our gears, and never allow him to see a cutter.</p><p> </p><p>I did show him an electron beam welder, and he watched it welding hubs (about 6" in diameter to a hydroformed housing.) Took about 36 seconds total, and the actual weld was about 16 seconds. He questioned the quality of the weld (about a half inch wide and 80% penetration) and I showed him several we cut apart for inspection (daily). But the real kicker was when he asked me why we recut the welded area. I told him it was to make everything balance better and to take the last bit of error out of the part for assembly. Another thing that got him was that there were two operators on the machine. One guy loading parts about forty feet up the line and another guy unloading parts and sending them to a Warner Swasey CNC lathe that had no operator close by. The machine some how or another knew if the weld was bad and would automaticly kick it out into a scap tub (never figured that part out). We ran that machine two shifts a day, and performed maintaince on it on the third. What I didn't tell him was this single machine was the most expensive piece of equipment to maintain in the division and probably the entire corporation ($350K a year). </p><p> </p><p>Like I said they came back to have another look see, and actually called us several other times with questions on equipment.</p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 709416, member: 25383"] I think the York PA plant is purely an assembly plant, and also a weldment plant. Never been in that one, so what I say here is purely here say. Weldment areas tend to be dirty even when doing nothing but MIG and TIG. The engine assembly areas were relatively clean for what they were, but also kinda "UN" engineered. About like what we'd be doing in a garage workshop. Every operation was done by hand with no serious gauging processes to ensure good quality controll (the exception being the fly wheels to pin alignment, and even that could have been far better). The folks in there worked very steady and there seemed to be no wasted time. But could have been better. When I took him thru an area that was put together in 1982 (assembly) he was stunned. How much easier and faster the processes were for setting clearences and alignments just blew him away. The assembler just put the rotating pack inside a case and a machine made a series of measurments, and he then added the spec'd shim packs for the bearings. Takes about three minutes. I did take him for a VERY swift walk thru of one our many gear cutting areas and he said it was a lightyear better than anything he'd ever seen. He asked me about talorences and involute profile accuracey. I was vague for a reason. But I did tell him we were cutting gears at less than .001" run out. He wanted to see the heat treat areas, but that was too closely guarded. (he was within 25 feet of a couple and didn't recognize them). He did ask me how pinion gears we cut in one cell a day, and I told him a little under 900 a shift. Or close to 1.8 gears a minute finished. Actually much more than that as you rarely had five hobs running at the sametime) I wouldn't let him close to any of the final finishing for our gears, and never allow him to see a cutter. I did show him an electron beam welder, and he watched it welding hubs (about 6" in diameter to a hydroformed housing.) Took about 36 seconds total, and the actual weld was about 16 seconds. He questioned the quality of the weld (about a half inch wide and 80% penetration) and I showed him several we cut apart for inspection (daily). But the real kicker was when he asked me why we recut the welded area. I told him it was to make everything balance better and to take the last bit of error out of the part for assembly. Another thing that got him was that there were two operators on the machine. One guy loading parts about forty feet up the line and another guy unloading parts and sending them to a Warner Swasey CNC lathe that had no operator close by. The machine some how or another knew if the weld was bad and would automaticly kick it out into a scap tub (never figured that part out). We ran that machine two shifts a day, and performed maintaince on it on the third. What I didn't tell him was this single machine was the most expensive piece of equipment to maintain in the division and probably the entire corporation ($350K a year). Like I said they came back to have another look see, and actually called us several other times with questions on equipment. gary [/QUOTE]
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