Keyway slotting on the milling machine

hey welcome back our process of pouring this hand wheel to another diameter which already happened or to 70 millimeter now it needs a 5 mm in a key way so let's head over to the shaper and cut this ski way um that's not shaper dang it okay I guess we have to do it another way okay sorry for the small joke I want to show you how I cut a key way internal key way on the milling machine using the milling machine as a slaughter or a vertical shaper cutting a key way on a milling machine is not nothing I invented or that's anywhere new but I guess that could show it while I'm doing it the rule has just held on a large steel parallel with two clamps and two spreader bars so it's a nice and solid setup we have some room below the hub and center so chips can fall out and you're good to go now we need a tool to cut the cube please forgive me the crudity of destroying this is the tool I ground this is high speed steel cobalt 8 so a good grade high speed steel all browned on this lip cutter grinder with her with a be 125 cen grinding wheel and then I had it just with stone to to polish the edges give it a nice sharp edge and how this is designed this is top view this and sighs you start with the side view we have a front cutting angle of 10 degrees and we have a back rake here that's this of 2 degrees this is just this large surface here does not rub when we go down in the slot now returned until 92 recent get this view and as you can see it's grounded to 5 millimeter width that's this dimension and about 8 millimeters behind it I relieved it maybe 0.5 millimeters so the thickness of the tool doesn't drop too much what I didn't draw here is that I also have about 1 degree taper this way the cutting action frontier is the widest portion and behind it it's relieved and the shank is just 8 millimeter and I will hold this in a collet when my high precision milling machine I have a very simple way to lock the spindle against rotation when I do slotting or shaping that's a large aluminum ring and this large nut and I always have this almost always have this more steeper for to most stupid - reduction here the spindle it has a thread on it and this ring rests against the quill and when I put this nut on and I tighten this a little bit the spindle is locked you need some way of locking of locking the spindle to do this otherwise you will get into problems only switching it and back you will not do it because back your ass obviously a little bit of backlash you if your mill has a spindle break you're you're you're a lucky guy of course or you have to find a way like this this is not the most elegant version but it's very simple and I didn't have to make anything for it I put a standard 8 millimeter shaft collar on this tool and clamped it so this quite heavy cut 5 millimeter wide and I do not want the tool get pushed up into the collet so where the shaft collar rests against the face of the the collar and should help that's clamp it now we need to orient the tool so it's showing in one direction to indicate the tool and we're using dial test indicator setting on the table of the mill and we're just moving across the face of the tool using a pair of pliers to manipulate the tool until we get a relatively low movement in the needle when I grant the tool I made sure that the 5 millimeter the width of the tool is and has the same center line as the shank of the tool so centering it up in the bore is super simple I moved the the head of the mill down as far as possible so I do not have to extend the quill very much because this let's that's quite a bit of side load on the quill and you do not want to do this with the quill fully extended keep everything very short very rigid and very stiff throughout my dear Oh move over about maybe 500 700 meter add a little bit of cutting [Music] there we go as hand wheels cast-aluminum so the forces involved here are very very low I take I take point oh five millimeter cuts that's that's like two thousandth of an inch this goes very nice and I have to say this goes also very very fast it's it's fast and setup it's it's sometimes this is just a very good alternative to using a shaper yeah I know the guy who just sold his shape tells you that the mill is in a better shape I can't wait to read the comments on the dis video I should I should I should take I should keep an eye on my dimensions here okay a little bit more okay there we go now at the end of the cut I will do a few spring passes just to tweak just to clean up the bottom of the slot until you cannot hear any more shaper noises now I've removed the table a little bit sideways oh that's what that was brilliant I can see perfectly nice shaped key wait so before we end I have to do two more of these hand wheels so I want to quickly talk about the overall setup I have large parallel hearing wise and the hand wheel rests with this nicely machined surface right on the ground parallel here which is a very nice way to have it run true later once I machine it that solves the reason why I'm not holding it in the lathe you could set it up in and this this one would even fit in the sixth jaw nicely you could set it up on a face plate or something like that but this is just so simple and fast just put the part up here two parallels as spreader bar so I'm clamping across the part and some edge and two can't twist clamps using the dial test indicator to indicate it switch over to the wall hop the boring head a nice sharp highly positive aluminum insert and bore them out to seventeen millimeter I'm pretty pretty sure that this is faster than doing it on the lathe and then switching over to you can also do it on the lathe and slot it on the shaper just was the same - I showed before held in a quick change holder or tool holder for relief and slotted that way but we're holding wise I find this faster and the warm-up is always a joy to use there we go that was the final cut hope you enjoyed this quick demonstration and go over watching and see you next time [Music]

Channel: Stefan Gotteswinter

Views: 47,294

Rating: 4.9568124 out of 5

Keywords: shaper, slotter, slotting, stoßen, hobeln, passfedernut, keyway, räumen, optimum mb4, opti mb4, handrad, wohlhaupter

Id: s7MBl_cWXrc

Length: 12min 0sec (720 seconds)

Published: Mon Aug 13 2018