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Types of Knurling

Figure 1 Straight Knurling
Figure 1 Straight Knurling

Knurling is the one the manufacturing process, Which is mostly done in Lathe, Whereby Straight or angled or Diamond shape is cut on the object by rolling. The main purpose of Knurling is to improve the Material handling and also to provide better Gripping of the Object.

Figure 3 Spiral Knurling
Figure 3 Spiral Knurling

Knurling method: left/right with tips raised, spiral angle: 30°, pitch: 1 mm, profile angle: 90° Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled or crossed lines is rolled into the material.

Figure 4 Straight Knurling Holder
Figure 4 Straight Knurling Holder

Design and types of knurling tools Design and types of knurling tools. ... Figure 4 Straight knurling holder. 1 knurling holder 2 knurling wheel.

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Figure 5 Spiral Knurling Holder
Figure 5 Spiral Knurling Holder

Straight knurling holders are solid and have one wheel (see Fig. 4). The wheel should run with a little clearance in the borehole as well as in the holder. Straight knurlings are produced by means of straight or hollow knurling wheels (mostly cylindrical) with one wheel only in the knurling holder.

Figure 7 Hollow (Concave) Knurling Wheel
Figure 7 Hollow (Concave) Knurling Wheel

With proper tools and application, a clean, well-formed knurl or serrations can be produced. One of the most frequent mistakes made is illustrated in Figure1. in this case, usually for convenience, the knurling tool and part are set with parallel axes. This is similar to running a pair of bevel gears the wrong way.

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