Reamer type

Most of the reamer structure consists of working part and handle part. The working part is mainly used for cutting and calibration. The handle part is used to be held by the clamping device, with a straight handle and a taper handle.

According to the different USES reamer can be divided into many kinds, so about the standards of the reamer is more, we compared with some commonly used standard GB/T1131 hand reamer, GB/T1132 straight shank machine reamer, GB/T1139 straight shank Morse taper reamer, and so on.

The reamer is divided into manual reamer and machine reamer according to the usage. By reaming shape can be divided into cylindrical reamer, reamer and cone (standard taper reamer is 1:50 taper pin reamer and Morse taper reamer both types), reamer let chip groove direction, have straight flute and spiral flute. Commonly used material for high speed steel. Carbide tipped.

Hand reamer is generally made of alloy tool steel (9SiCr), HSS for machine reamer, and machine reamer is divided into reamer for straight shank machine and reamer for taper shank machine

The precision of reamer is D4, H7, H8 and H9.

According to the shape of hinge hole, there are three kinds: cylindrical, conical and stepped trapezoid.

Installation clamp method is divided into handle type and suit type.

According to the shape of tooth groove, there are two types of straight groove and spiral groove.

The manual reaming. General considerations: 1. The workpiece to be positive. 2. The process of ream, hands are hard to balance. 3. The reamer exits, cannot be reversed, after reamer have Angle, reamer reversal make chip tucked behind the reamer blade and hole wall, between the wall of hole cut; At the same time, the reamer is easy to wear and tear.

2. Pay attention to the hinge speed and the amount of cutting tool (refer to the metal cutting manual)

3. Reasonable cooling lubricating fluid must be used in hinge grinding.

The taper of guide cone used by hand is small, the leading Angle and the back Angle are small, the edge is sharp, the blade band is narrow, or the guide cone is not at all.