Some Tips to Mill Titanium with a CNC Milling Machine

Written by

Titanium is probably the noblest of metals out there. The material is resistant to oxidation, and it can withstand the effects of a lot of chemicals. This alloy is also one of the very few substances with a large number of medical applications since the human body can’t reject it. Titanium is also recyclable, and it’s really strong considering how light it is. The metal is the material of choice for many industries such as automotive, aerospace, firearms, and medical. Any manufacturing operation expecting to earn big knows how to work with titanium.

Sadly not everyone knows how to machine titanium the right way. This metal is a challenging material to work with. There is a high rate of accidents that happen in workshops related to the use of this material to create parts that are difficult to produce. Even the most experienced CNC operators work this metal with extreme caution to make sure they don’t break something and to avoid any injury. The most common workpiece of titanium is a Grade 5 piece. This grade is the closest thing to pure titanium.

The Secrets to Mille Titanium Like a Pro

Handling titanium with a CNC milling machine and no experience is a recipe for a time bomb. The metal can be a bit too flexible at times. When you place a titanium piece on a CNC milling services, it will probably bend instead of getting cut. This can put a lot of frustration in you, and you can lose a lot of workpieces making mistakes. To avoid these problems, we will share some tips with you:

  • Make Steady Contact of the Workpiece with the Mill

You need a steady hand for this one. You will have to keep constant and stable contact between the CNC mill and the titanium sheet you are machining. Entry points, as well as the exits, are a potential risk for failure, so it is best if you keep these as low as possible.

  • Never Lean on the Workpiece too Fiercely

If you slide the tool into cuts, you will expose lesser portions of the mill to the surface of the titanium sheet. This will give the mill less time to get heated and more time to get cooled before the next rotation. Do your best to keep small arcs of the mill from making cuts.

  • Try Climb Milling

 All metals need a thin-to-thick chip rate. This means that you begin your milling task with a small chip rate and increase it after every entry. This doesn’t work with titanium. You need to work the process backward and begin with the thick parts to break the surface quickly. That way you will avoid unwanted bends. On the exits, do your best to prevent adhesion by working with thinner chips.

  • Work your Mill with More Flutes

One of the most recommended techniques for milling titanium is working with a 13-flute cutting tool. It’s the best way to keep a low rate on chipping with a quick surface speed. A lot of people try to avoid that many flutes, but they can keep radial depth low. This is closely related to the specs of the project; it’s better to study them to know your needs with accuracy.

Article Categories: