Classification of cutting shapes

Classification of cutting shapes

    Due to different processing conditions during cutting, many different shapes of chips are formed. According to the national standard GB/T 16461-1996, the chip shape and its name are divided into eight categories as follows:

    ① Band-shaped chips, where "1" means band-shaped chips, "1-1" means long band-shaped chips, "1-2" means short band-shaped chips, and "1-3" means random chaos Band-shaped chips wound together.

    ②Tubular chips, where "2" is used to indicate the meaning of tubular, "2-1" indicates long tubular chips, "2-2" indicates short tubular chips, and "2-3" indicates randomly wound together. Tubular chips.

    ③ Spiral-shaped chips, among which "3" is used to indicate the meaning of circling-shaped chips, "3-1" means long flat spiral-shaped chips, shaped like the clockwork of a clock, and in a plane, "3-2" means conical shape Hovering chips.

    ④Circular spiral chip, where "4" is used to indicate the meaning of ring spiral, "4-1" indicates long ring spiral chip, "4-2" indicates short ring spiral chip, "4-3" indicates irregular Of tangled circular spiral chips.

    ⑤Conical spiral chip, where "5" is used to represent the meaning of conical spiral, "5-1" represents long conical spiral chip, "5-2" represents short conical spiral chip, "5-3" "Indicating irregularly tangled conical spiral chips.

    ⑥Arc-shaped chips, in which %" is used to indicate the meaning of arc-shaped, "6_1" means arc-shaped chips connected together, and "6-2" means loose arc-shaped chips.

    ⑦Unit chip use "7" to indicate the meaning of unit chip.

    ⑧Needle-shaped chips use "8" to represent chips that are shaped like needles.

    According to production experience, if the above-mentioned short tubular chips (2-2), flat spiral-shaped chips (3-1), conical spiral-shaped chips (3-2), and short circular spiral chips (4) can be formed during the cutting process One 2), short tapered spiral chips (5-2), and unit chips (7) and needle chips (8) obtained on CNC machine tools and automatic machine tools with protective leather can be classified as acceptable chips. shape. The ideal chip shape is the "C line, u6"-shaped chip that flows out directionally in the short chip and the short spiral chip with a length of not more than 50mm.