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In this video: The first video in a new series on bending sheet metal with SendCutSend. In this video we discuss common bending terminology. The k-factor is the ratio between the thickness of the metal being bent and something called the “neutral axis/line.” The neutral axis is an invisible line that splits the thickness of the metal in half and runs all the way through the part. The neutral line represents the material that doesn’t actually change or compress during the bending process, but just moves in the direction of the bend. The k-factor uses this relationship between the neutral axis and the thickness to determine how much the metal on the inside of the bend will compress and how much the metal on the outside of the bend will expand, changing the length of the overall part.

Knowing the k-factor of a part prior to forming is crucial to the bending process because it determines the tooling and angle in the brake. But beyond that, it’s important for you to know the k-factor of your part before you even finalize the design. Because the bending of a part changes its length, you will need to compensate for that expansion and compression in the design stage of your part.

Setting up your file for sheet metal bending: [ Ссылка ]

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