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Thread: Tips on Milling 1045 Steel
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15th August 2013, 04:34 PM #1
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Tips on Milling 1045 Steel
I have a project coming up that is to use a piece of 75x75 1045 solid square milled down to size. Is there anything I need to know prior to taking on this material? I have read the documents online about its properties, but it would be good to hear from anyone that has worked with this steel. It it tough to work with? How does it machine compared to mild steel? Flood coolant required?
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15th August 2013, 04:42 PM #2
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I haven't milled it but I've turned it and it machines nicely with HSS. You can feel it's a touch harder than mild but it cuts cleaner. I don't use coolant so I'll let others comment on that.
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15th August 2013, 07:23 PM #3
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Machine it just the same as you would mild.
Sometimes it can be difficult to get a good finish,but that usually depends on the tooling being used.
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15th August 2013, 08:28 PM #4
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Its close to mild steel, just a bit tougher.
Tends to take the edge off HSS cutters a bit quicker.
I'd drop your speeds 20% and try to use coolant with or cutting oil with your HSS tools.
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15th August 2013, 11:38 PM #5
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The only 10XX series that i have milled, other than 1020 is 1075. And only with carbide tipped cutters. It comes of the tool looking better than plain mild, and i ran the carbide at normal speeds. With HSS i would flood cool and i would make sure the chips are being flushed away from the cutting edges. If the chips get to hot and then quench in the coolant they can start to get hard and ruin cutters quickly.
Cheers,
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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16th August 2013, 10:40 AM #6
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If you want to know the feeds and speeds to use for 1045 try downloading Gwizard.
GWizard: A CNC Machinist's Calculator for Feeds and Speeds
There's a 30 free trial which will give you some time to play with it.
You can pick the different materials i.e. 1045 and based on your tool, depth of cut etc. it will give you the feeds and speeds.
Christian
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16th August 2013, 01:17 PM #7
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Thanks for the responses on this. It sounds relatively straight forward. I will approach it the same way I approach mild steel and see how it goes.. hopefully I have something good to report. My next issue is lifting it onto my bandsaw to take a slice. I have a meter of 75x75 and it weighs a "ton".
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16th August 2013, 01:26 PM #8
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Where did you get the steel from?
1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
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16th August 2013, 03:41 PM #9
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Its only around 45 kgs.
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16th August 2013, 03:58 PM #10
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Great little Program as well.
Machinist ToolboxShane
Still trying to fit a square peg into a round hole.
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16th August 2013, 05:22 PM #11
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Ewan, it came from these guys: Bohler-Uddeholm Australia - Black Carbon - they did not have any regular mild in the size I needed. I also got some bright round in 50 and 60mm. Good for my collection...
Peter, your welcome to come around and lift it onto my bench
SWMBO helped carry it from the car. My ear is still hurting..
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