More Than Machines (sound)

foreign [Music] how's the production coming on your hydraulic solid oh we've had a nice increase in the production system shot at Holy nice job how's your boy Jay is just fine that letter from just the other day say he likes it that's the stuff that is a fine laugh it's straight and round all right but it's a half thousand under for size that's right we'll have to run that through again the size Tolerance on these boys is plus three ten thousandths minus nothing you see Jim on these government jobs we're only allowed a one-way size Towers unilateral tolerances were allowed something minus is something plus but never both as we were on regular commercial jobs you better reset that micro size well that's easy one thing about these machines when you get them set there's nothing to worry about well in a way Jim's a good machine man but he's new on these homes now don't forget it's up to you to set the table travel and the micro size and you've got to be careful to do it just right after that you can run jobs through all day with only a few resettings because the control is built right into the honing equipment seems to be made for this job all right in every case they design the equipment especially for the job it's going to do now while you're running that hydraulic cylinder through Jim I'm going to tell you about some of the things they've done and what they're doing now foreign the first big job was on automobiles back in the 20s a 26 horsepower automobile engine weighed 1875 pounds by 1941 an engine that weighed only 558 pounds was producing 90 horsepower this increased efficiency was made possible by better Metals better design better machine one of the most important steps in better Machining was the development of the honing process more accurate surfaces for many working parts of the engine could be generated by honing in mass production most of the bearing surfaces in automotive engines have been made better by honing the greater accuracy obtained by honing permits closer control of precision fitting closer control of uniform size which is obtainable by honing permits interchangeability of parts the ability to generate any type or degree of surface finish makes for reduced wear longer operating life better more uniform lubrication and increased operating efficiency course honing of cylinder bores was the first big step forward that helped to make automobile engines last longer it gave us close-up tolerances and higher compression at the same time it shortened the breaking in Period all these advantages given by honing were needed by the entire automotive industry and so better commercial trucks were made from the engineering Lessons Learned we are making better military vehicles of many kinds from the bounding Jeep made to take plenty of punishment the big trucks with four six and eight wheel drive all of the hard-working army trucks jeeps and half tracks are doing better jobs because important working parts have accurately honed surfaces in fact the home has improved every kind of Transportation diesel engine is a better power generator today because the cylinders fuel injectors and bearing boards are micro finished on specially designed homes and so Uncle Sam's submarines other Naval vessels can depend on their diesel engines to take them thousands of miles across the sea just as American-made tanks with diesel power give Dependable service Far From Any Supply Depot even the hard-hitting guns on our tanks have been improved by honing ordinance Engineers require the rifle barrels of modern guns to be so finished as to provide maximum muzzle velocity of projector and so a home not only finishes the surfaces of the lands but also the surfaces of the grooves of the rifling specially designed homes for this job generate the kind of surface finish which will least the projectile as it spins out of the barrel some gun Chambers are now taper generated by honing it's believed that this method of generating a surface on the chamber bore reduces the danger of the cartridge case sticking to the walls of the chamber after firing besides gun barrel boars and shell Chambers there's another important application in the hydraulic recoil mechanism and still another hydraulic application of honing is in the finishing of the bores of all kinds of pumps in aircraft hydraulics have made the landing gears better for the final processing of the landing gear shock strut cylinders micro finish honing is widely used throughout the world the landing gear Oleo cylinders are honed in one or two operations on a standard honing machine hydraulic cylinders used to operate the wing flaps are also micro finished maximum accuracy and smoothness are essential in this cylinder as the assembly must pass an inspection involving hydraulic pressure of 2500 pounds per square inch when it comes to aircraft power there is much evidence to show that haunting has made it possible to add power and speed and yet cut down weight more and more power is built into the engines of modern plane today aircraft engines weigh only one pound per horsepower to a great extent this increased efficiency has been gained without sacrificing safety because of better accuracy and safest quality produced by hold The Crepe pin boards and the master connecting rods of radial engines are microfinished and so are the wrist pin boards and tandem knuckle pin boards and still other special homes are used to surface the bores in aircraft engine articulated rods the carrier ring is another one of the many aircraft engine parts that is being Precision honed in regular production as you said Jim this finer Machining isn't difficult because most of the controls are built right into the honing equipment as long as you watch your settings get them right you're sure to turn out the highly accurate work that's demanded today yeah that's okay now you see Jim wallet I've been telling you is part of the progress that we're making and you're a part of it this isn't just a home this means faster airplane safer better plane better guns and jeeps tanks diesel engines truck engines gun recoils gun barrels shell Chambers many other parts Precision machines like their micromatic home are more than just machines they represent more useful mechanical achievements and even better services for tomorrow foreign foreign [Music]