MUN Lathe Demo 1

good afternoon and welcome back to the machine shop another exciting video in the machine shop series this afternoon I'm going to run through the process for making the displacer guy we've been doing that in the shop for the last little bit so I'm just going to run through that and talk my way through it so you can have a quick view if you need to I'm going to take off my watch I'm going to put on my safety glasses so I can get started safety boots are on safety glasses I'm ready to roll so I've come over to the lathe today the first thing I want to do is pick a tool I'm going to use a high speed steel tool I'm going to be cutting a piece of brass because that's what the drawing calls for so high speed steel tool with the brass I want to run at 800 rpms I checked my two levers up top I check my lever down bottom and I am in fact in the right places to be running the speed I'm going to take my tool holder and I'm going to rotate it around I'm just going to set it up square from down I'm going to get myself a tool holder always clean it out to make sure there's no chips underneath to hole this up and I'm going to lay that in the tool post I'm going to take the tool that I want and look to see if it's sharp and looks reasonable I'm going to use it in with the cutting edge pointing toward the chalk I'm going to have about an inch sticking out snug those bolts tighten them up with a wrench because I certainly don't want it to come out and I'll lock this one here now what I want to do is check it against the center so I have a Center in here I can take it out by feeding it all the way back if it was a chuck in there I'm just going to bang that in I'm going to lock the center it doesn't move I'm going to rotate the tool now back towards the center lock it up move I'm going to bring it back feed it into the center now I want to make sure that it's right on center and if you look at that tool it's great somebody must have had it set up before for me so that's good I'll just lock it to make sure it doesn't move I'm ready to start turning before I start turning what I want to do is move my tool will face and turn because I can do both operations then without readjusting my tool so I'll put my stock in I want to leave about half of its little over half of its you know make sure it's tight the reason I believe in more than half out is I need the machine the outside diameter because we don't actually have the inch and a quarter stock we're using inch and 3/8 I need to machine it down to inch and a quarter and I want the face and turn to part so I'm going to bring my tool in now and check my angles so if you look the angle is a little bit too steep so I'm going to turn it a little bit now I can tighten the screw in the top and if you look at the piece now I can machine to face and I can machine the outside so I can machine both here now and that will work out great for me okay so I'm going to turn the lathe on before I do anything I want to face the part to make sure I got a nice flat surface to start I'll bring the tool over I'll touch the face I'll move the tool out now I want to move the tool closer to the chalk the amount I want to remove I'm just going to feed straight in so I'm facing the part next thing is I want a machine this beat to an inch and a quarter I'm going to touch the tool on the outside first thing I want to do is remove a little bit of material so I got a nice round surface to measure from I'll take a small cut and I'm going to set high I'm going to hold the outside so the tool won't move now I'm going to roll this to zero so I've now zeroed the tool on the outside I need to remove material to take it to an inch and a quarter when I turn my caliper arm I'm going to check it for zero it's zeroed the lathe gage is in millimeters two drawing for this the outside diameter at a piece when we order stock it's always an inch so it needs to be an inch and a quarter so I'm going to open my caliber to an inch and a quarter which is one inch two hundred and fifty and I'm going to set it to zero I can set zero anywhere on the scale I set it to zero so that when I put it on the outside it tells me that I need to remove point zero four nine thousandths of an inch the dial is in metric so I just convert that dimetric with the caliper and I need to take off one point two five millimeters to make this part the right size outside so I'm going to do that I'm at zero so I'm going to go in 1.25 and now I'm going to turn the lathe on I'm going to take a small test cut when I look at the way that this card is machine this is all going to be machined off after so if I've made a mistake in my calculations now I will be able to see that a mine point zero one of a millimeter smaller than the part should be that's way definitely within tolerance so I'm going to go with that and I'm going to machine card all the way along I'll machine over tell I'm almost to the job and then I'll come back so now I've machined the part to an inch and a quarter I'm going to set my tool back to zero again I'm going to hold this so warm oh I'm going to slide to scale now the tool is at zero depart I'm making is two parts back to back and the drawing tells me that the part should be 17 millimeters outside I'm going to close my caliper I'm going to reset it to zero reset it to zero I'm going to open it up to 17 millimeters that's where I need to go so if I set that at 17 millimeters instead of to zero now I can measure it apart it tells me I need to take fourteen point seven to off now I need to take that over it tells me 13 millimeters on drawing so I'm going to close my caliper I'm going to set it up to zero and now I'm going to open it to 13 so I can use my caliper right now I'll just tailstock out of my way I can bring this over and I can actually measure 13 millimeters with my caliper right here I've just lined the tool up so it's right in line with 13 millimeters so I got a visual of where I'm going to go I'm actually going to turn on the lathe now feed straight in and it makes a little line at 13 so I'm at zero on the outside now I have to take out 14 millimeters I'll take 10 to start so I'll go three at a time I'll take three millimeters off I'll take three millimeters off I'll take another three millimeters off and I'll take another three so now I'm going to check again so I'm going to set my caliper back to 17 that I want check this ah I need to take 2.8 off so I'm at 20 so that's fine I'll go one I'll go to and I'll go 8 get out when the teen up to the surface now and this time when I get to the back instead of feeding back out I'm going to feed out away from the center and that's going to make that back face nice and flat for me so now I'll check my measurement again and I'm 0 which is what I want to be which is 17 check my depth I'm going to set my caliper to zero now I'm going to measure my depth as well and when I check the measurement it should be thirteen at seventeen point seven three so I need to take point two five off this is not a critical measurement so I'm not really going to be concerned about measuring that to accurately so I'm just going to go in a little bit touch it on the face and machine off a little bit here check my measurements and I'm twelve point nine eight which is certainly within tolerance before I take the part and turn it over because I'm making two parts back-to-back I'll remove two sharp edges so I'll just skip the foil I'm all holding it my left hand and I'm taking the sharp edges now I can take the part out of the lathe I can flip it over tighten it up I'm holding the part that I machine because I need the rest of it out so what I want to do now is take off the outside of this part to be the same as that now I can measure this go through the same measuring system but I know that this is the right diameter because I checked it so I'll just touch my tool on that and call it zero so I'll bring my tool over I'll just touch the outside I'll set my tool now to zero and I'll come over here and set my tool to zero machine and I will give me the same time I'm going to face the part now so I'll just touch it bring it out I'm going to move it over to melt I want to take off be straight in I'm going to take a little more and there it is now I can tell the face in the perch so I have my size there so now what I want to do is I want to measure over 13 so I'll use my caliper set on 13 I'll move my tool in and bring it up so it's right in line with the end of the caliper I'll feed straight in the outside is now on zero because I zero that and I need to take out 14 I know that because I measured it on the other side it's the same curve so I'm going to go in three I'm going to go in three I'm going to go in another three when I say three I'm talking millimeters and we'll go in three more millimeters which will give me 12 millimeters and all dem measure because I want to be sure my measurements right okay so I'm going to set my caliper on zero I'm going to open it up to 17 because that's what the measurement needs to be going to measure this and I have to take off two point eight two point eight means I go one two point eight and I'll feed over to the line remember to clean up the back face by feeding straight out I'm going out a little bit because it didn't quite clean up the line and I'm going to check this it's zero so that's why I want I'm going to check this put your thirteen point one six which is certainly within tolerance so before I park the piece I'm going to take the sharp edges off and I'm going to put in a parting tool so to take out the parting tool and turning tool and put in a parting tool I have it in a different holder so I'll just lift the parrot out I'll put this one in but I have to check it for Center so I'm going to swing it around bring it over to the center and do tiny bit low I'll move it a little call that good swing this over now I need to make sure that tool is perfectly in line with the feed so it feeds straight in so I'm using the side of the piece that I just turned to do that and I'll tighten that up there I need to go cut this piece in half I've act left a little bit extra so I'm going to eyeball it fur in the middle but I could measure this it's 19 the tool is 2.5 so I take 2.5 from the 19 and then I divide what's left by 2 4 8 and quarter or whatever it is so right now I can just feed straight in because I know there's lots of material there so I'm going to hold I've tighten everything up so I'm just going to feed straight in and part the piece off so the parting of the turning tools are a little bit different in the way that they cut but they must be on center in order to work properly you need to be sure you're not standing in the fly zone when you're parting because the piece might come out okay now that I Pisa we just need to finish the back so I want to take the parting tool out put the turning tool back in I'm ready to finish up the backside the backside is very similar to the front you're turning a small spigot but you will drill and drill a center drill and drill a hole in the other side that's a little quick tutorial on the turning of that part have a great day

Channel: munmachineshop

Views: 10,727

Rating: 4.9347825 out of 5

Keywords: MUN, Lathe, Demo

Id: 5QRYUD1G2DA

Length: 14min 36sec (876 seconds)

Published: Tue Sep 27 2011