Brass is the alloy obtained by adding zinc to the copper element. Brass are the most widely used alloys in industrial applications and applications for aesthetic purposes. It is a non-ferrous material widely used in engineering. Brass has the ability to melt, it is a very tough and easily processed material.
Alloying elements are added to copper-zinc alloys for various reasons. Although brass is mainly copper and zinc alloys, it also includes other alloying elements such as lead, silicon, aluminum, iron, tin, manganese, nickel or arsenic, whose presence and content are responsible for the wide variety of properties inherent in these materials. Causes; To increase the workability, to increase the strength and wear resistance, to increase the corrosion resistance. Lead element is usually added up to 4% in brass alloys. The World Health Organization (WHO) demands restrictions on the use of lead elements harmful to human health. The places of use of rice, especially in the uses that have direct effects on human health; It requires a maximum of 1.6% lead in the alloy. Brass containing 1.6% or less lead in alloy percentage is called Lead Free Brass Alloy. Therefore, when compared in terms of machinability, lead deficiency in the alloy; It affects chip structure, surface roughness, cutting force and cutting tool.
Anahtar Kelimeler: Brasses, Lead-free brass alloys, Machinabilty