Basic knowledge: Machining circular saws

Sharpening, machining and maintaining carbide-tipped circular saws. VOLLMER basic knowledge.

As the world market leader in sophisticated sharpening machines, with over 100 years experience, we know what is important when machining carbide-tipped circular saws in a variety of ways. We are happy to share this expertise in the form of targeted advice, and offer products which are precisely adjusted to particular requirements.

Sharpening the tooth face of carbide-tipped circular saws

Sharpening the tooth face of carbide-tipped circular saws

As a rule, tooth faces are sharpened straight; however sometimes they are also sharpened at an angle.

Tooth face machining also includes hollow face grinding. This is carried out using a grinding point at high speed. However, this method cannot be used for every saw blade. There must be a certain amount of chip space available in order to be able to machine the tooth face using peripheral grinding. In particular, it must be ensured that the grinding point is positioned exactly in the middle of the saw blade diameter and the cutting width.

Do you want perfect all-round results? Discover the grinding machines for machining hook and clearance surfaces from VOLLMER!Machining of hook angle and side angle

Machining circular saws
1. Tooth face (tooth breast) /// 2. Negative tooth face /// 3. Concave tooth face (hollow face)
Circular saw machining: Front grinding
Machining the tooth face in a face grinding process
Circular saws with different tooth geometries
Different tooth geometries for tooth face machining
Circular saws with different tooth geometries
1. Flat /// 2. Single-sided angled right /// 3. Single-sided angled left
Machining hollow face
Different tooth geometries for tooth face machining

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Grinding the clearance surface of carbide-tipped circular saws

Grinding the clearance surface of carbide-tipped circular saws

Machining the clearance surface can be done in a wider variety of ways than grinding the tooth face. The geometries can be designed to be straight to almost round, depending on the range of applications of the carbide-tipped saw blade. Machining is carried out with a face grinding or peripheral grinding process.

Machining using a face grinding process is particularly time-saving. Using this method, the grinding wheel must simply be turned through a certain angle in order to produce a wide range of tooth shapes (such as trapezoidal, roof, etc.).

Whichever geometries you require, the grinding machines from VOLLMER can meet any requirement. Discover for yourself the VOLLMER machines for machining hook and clearance surfaces!

Machining circular saw – clearance surface
1. Clearance surface (top of tooth) on the blade /// 2. Clearance surface (top of tooth) on the carbide tooth
Circular saws with different tooth geometries on the clearance surface
Different tooth geometries for clearance surface machining
1. Flat /// 2. Single-sided angled right /// 3. Single-sided angled left /// 4. Alternating angled
Circular saws with different tooth geometries on the clearance surface
Different tooth geometries for clearance surface machining
5. Trapezoidal /// 6. Group toothing flat-trapezoidal with tooth height difference /// 7. Group toothing flat-roof with tooth height difference /// 8. Group toothing trapezoidal-trapezoidal with tooth height difference
Machining the clearance surface on circular saws
1. Machining the clearance surface in a face grinding process /// 2. Machining the clearance surface in a peripheral grinding process

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Side grinding of carbide-tipped circular saws

Side grinding of carbide-tipped circular saws

The flanks of a saw tooth are ground to a tapered shape in the cutting and feed direction, in order to prevent the cutting edges from pressing into the material. The precision of the tooth flanks significantly influences the surface quality. Grinding is carried out once when the circular saw is manufactured using a face grinding or peripheral grinding process.

Perfect surfaces: Using VOLLMER grinding machines for machining flank clearance surfaces. Discover them here!

1. Tooth flanks downwards, in feed direction, tapered /// 2. Tooth face /// 3. Tooth flanks backwards, in cutting direction, tapered /// 4. Tooth face
1. Side grinding in a face grinding process /// 2. Side grinding in a peripheral grinding process
1. Flank clearance surface /// 2. Raised tooth flank /// 3. - 4. Possible machining of the flank clearance surface
5. - 7. Possible machining of the flank clearance surface

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Soldering carbide-tipped circular saws

Soldering carbide-tipped circular saws

The body of carbide-tipped circular saw blades consists of pretensioned tool steel. Raw saws have a tip groove, onto which no cutting plates made of carbide can be precisely soldered. Soldering takes place during production using automatic machines. However, for service work, it is carried out manually with the aid of machines, as this only involves replacing individual broken cutting edges. Silver or a sandwich alloy is used as solder.

Resistive-soldering equipment is used most frequently during repairs. Defective teeth can also be removed with this equipment. Find out more now about VOLLMER machines for repairing and measuring!

Soldering of carbide-tipped circular saws
1. Prepared blade with tip groove /// 2. Saw blade with soldered teeth

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