For example, the most commercially available titanium alloy is Grade 5, sometimes known as the workhorse grade. Titanium alloys are classified according to their characteristics. Is Titanium Stronger Than Steel?īefore we determine which substance is stronger let us first look at the characteristics of titanium and Steel For example, titanium drilling requires high feed pressure, and a hand drill may not have enough speed to penetrate through titanium. The majority of premium drill bits are not designed for hand drilling. Can you drill titanium with a hand drill? Carbide drill bits are the best bits for drilling titanium. They outlive cobalt drills by a factor of ten or twenty and can easily drill through titanium. Cobalt increases steel's strength and significantly enhances its heat resistance.Ĭobalt High-Speed Steel drill bits can come with Titanium (TiN) Coating.Ĭarbide metal drilling bits are suited for nonferrous metal drilling. You can use the following drill bits for titanium.Ĭobalt High-Speed Steel (HSS) drill bits contain Cobalt, which boosts the hardness of the material above that of standard HSS. A dull drill impedes the passage of chips along the flutes, resulting in poor drilling results. However, carbide tipped drill bits are best for harder alloy grades such as 6AL-4V/Grade 5 and drilling deeper holes.ĭrill bits should be sharp and long enough to allow for the free flow of metal shards or chips. High speed drills are adequate for commercially pure grades with reduced hardness. What is the best drill bit for drilling titanium? In addition, the high temperature generated during drilling and the cutting edge’s poor heat distribution makes drilling titanium alloys even more difficult. Carbide tipped drill bits are recommended because they are stronger than titanium.īecause of the unique characteristics of titanium, drilling it can be challenging. However, drilling titanium needs extensive planning and access to the necessary equipment. You can drill titanium even with a regular HSS metal drill bit. Heat can easily degrade a regular drill bit so use stronger drill bit types. Titanium does not conduct heat as effectively as other metals so place cutting oil to prevent overheating. Recommended drilling speeds & feeds for titanium (6AL4V) :
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