Solid end mill

A solid end mill being rotatable around a central rotational axis, the solid end mill comprising:

• a cutting portion;
• and
• a shank portion, the cutting portion including a plurality flutes having peripheral cutting edges formed between associated rake surfaces and clearance surfaces, wherein each peripheral cutting edge, in a view perpendicular to the central rotational axis and toward the rake surface, forms:
• a single convexly curved lobe cutting edge portion disposed along an axial front part of the cutting portion,
• a single neck cutting edge portion connected to the convexly curved lobe cutting edge portion, wherein the neck cutting edge portion extends at a smaller radial distance to the central rotational axis compared to the convexly curved lobe cutting edge portion and is disposed along an axial intermediate part of the cutting portion, and
• a shoulder cutting edge portion connected to the neck cutting edge portion, wherein the shoulder cutting edge portion extends at a larger radial distance to the central rotational axis compared to the neck cutting edge portion and is disposed along an axial rear part of the cutting portion, and
• wherein each peripheral cutting edge, in the view perpendicular to the central rotational axis and toward the clearance surface, extends at a linear and constant axial inclination angle θ within the range 5°≤θ≤15° in relation to the central rotational axis, wherein the rake surface, as seen in cross-sections perpendicular to the central rotational axis, form a positive radial rake angles αL,N,S along an entire extension of the peripheral cutting edge, and wherein the positive radial rake angles αL,N,S on the rake surface along the convexly curved lobe cutting edge portion and the shoulder cutting edge portion are larger than the positive radial rake angle αN on the rake surface along the neck cutting edge portion.