What problems may occur with the reamer?

The twisted holes are machined to achieve precise dimensions and shapes. High-speed steel reamer is used for the reaming workpiece has been drilled (or widened hole) after the machining hole, mainly to improve the accuracy of the hole processing, reduce the roughness of its surface, is used for the finishing and semi-finishing of the hole tools, machining margin is generally very small. Reamers used to process cylindrical holes are commonly used. The reamer used to machine the tapered hole is a tapered reamer, which is less used. Here are a few possible problems.

Here is the content list:

●Why does the aperture increase when using the reamer?

●Why does the aperture appear to be small when using the reamer?

●Why are the reamed holes not round when using the reamer?

Why does the aperture increase when using the reamer?

The cutting speed is too high; the processing margin is too large; the reamer's main angle is too large; the reamer bends; the reamer edge is adhesion to the chip tumor; the hinged blade is extremely poor when the edge is grinding; the liquid selection is not suitable, the surface oil of the cone handle is not cleaned or the cone is bruised when the reamer is installed, the flat tail of the tapered reamer is loaded into the machine spindle after the cone handle cone interferes, the spindle bends or the spindle bearing is too loose or damaged, the hinge float is inflexible, and the shaft is different from the workpiece when the hand reams, the force of the hands is not uniform so that the reamer shakes left and right.

Why does the aperture appear to be small when using the reamer?

The design value of the hinge outer diameter size is small, the cutting speed is too low, the feed is too large, the main angle of the reamer is too small, the cutting fluid selection is not suitable, the wear part of the hinge is not worn off when the edge is grinding, the elastic recovery narrows the aperture, when the reaming steel part is too large or the reamer is not sharp, it is easy to produce elastic recovery so that the aperture is reduced.

Why are the reamed holes not round when using the reamer?

Reamer is too long, rigid enough, vibration occurs when reaming, the main angle of the reamer is too small, the reamer blade is narrow, the reaming hole margin is biased, the inner hole surface has a gap, cross-hole, the whole surface has sand eyes, pores, spindle bearings lose, no guide sleeve or the hinge and guide sleeve with the gap is too large, because the thin-walled workpiece clamp is too tight, remove the post-workpiece deformation. The reamer has too much margin, the rear corner of the reamer cutting part is too large, the reamer blade is too wide, the workpiece surface has pores, sand eyes, and the spindle swing is too large.

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