What type of metal tends to create discontinuous chips when cutting?

Brittle metals are known for producing discontinuous chips during cutting operations. This behavior is primarily due to their lack of ductility; these metals do not deform easily under stress and instead tend to fracture. When cutting brittle materials, the cutting forces can cause the metal to break instead of flow, leading to the formation of small, irregular chip fragments rather than long, continuous spirals. This characteristic can influence the choice of cutting tools and parameters, as it generally requires different approaches compared to more ductile materials, which tend to produce continuous chips due to their ability to deform more easily during the cutting process.