Gear Teeth TRIZ Cases

An eccentric axis offset lets a cylindrical honing tool maintain contact and avoid collisions when finishing beveloid gears with conical root diameters.

Eccentric spacing between tool and workpiece axes lets a cylindrical honing tool keep contact with beveloid tooth flanks while avoiding root-circle collisions.

Two skiving cutters independently form left and right tooth flanks, improving asymmetrical gear accuracy while reducing edge wear.

A transverse tool deflection during the return stroke avoids flank collisions, cuts lifting travel, and reduces vibration in gear shaping.

Segmented spline gears within a toothed ring accommodate misalignment while maintaining torque transfer, durability, and lower gear noise.

Localized tooth root protuberances improve undercut cutting conditions while preserving gear tooth strength and material removal efficiency.

Varying grinding-tool speed across tooth width creates surface topographies that improve gear noise behavior with minimal added complexity.

A transverse evasive tool motion during the return stroke avoids flank collisions in gear shaping while reducing lift, vibration, and path acceleration.

Mirrored involute form cutting machines straight bevel differential gears faster while preserving precise tooth flanks, low motion error, and high load capacity.

3D cutter rotations enable independent left and right tooth flank pressure angle correction in power skiving without new cutter disks.

Phase-shifted rolling coupling machines gear tooth heads in one clamping setup, improving tip circle accuracy without extra tools.

Inline vibration and acoustic signals are checked against reference tolerances so only suspect gears need precise downstream measurement.

3D cutter rotations reposition the skiving tool to correct left and right gear flank pressure angles without reworking or replacing cutter disks.

A phase-shifted second gear-cutting engagement machines tooth tips independently in one setup, reducing positioning error and tip diameter variation.

A side recess in the larger gear section lets a ring cutting tool reach the smaller section, reducing stepped gear width and collision risk.

A rotating table with mandrel holding enables one-machine cutting of external teeth and internal grooves, improving concentricity and throughput.

Crossed-axis gear skiving forms tooth flanks and root chamfers with controlled angle and symmetry, improving toothed wheel machining.

Crossed-axis skiving forms gear teeth and tooth-root chamfers with coordinated tools, improving chamfer angle control and setup efficiency.

A minimal machining allowance enables single-stroke gear grinding that cuts cycle time, lowers thermal influence, and preserves tooth geometry.

Two shaving passes expand from opposite gear ends to cut tooth surfaces with lower load, reducing transmission error and gear noise.

Two-step differential hob peeling machines left and right helical gear tooth flanks separately to form precise undercuts with oblique exit flanks.

Axial oscillation with synchronized radial infeed keeps tooth flank contact during gear honing, improving surface finish for quieter transmissions.

Continuous cutter inclination and speed-ratio control forms both tooth flanks with different helix angles in one pass for higher gear accuracy.

Continuous synchronous rotation with pre-set phase shift angles cuts opposite helix flanks faster while maintaining machining accuracy.

Continuous indexing of a universal cutter along a hypocycloid path reduces tool complexity and machining time for face gear production.

Concurrent toothing generation and deburring operations reduce cycle times while maintaining manufacturing precision.

A chamfering method defines tool motion paths using theoretical and actual tooth edge data to automate gear processing.

Superimposes auxiliary motion on rolling feed to connect flank cuts, eliminating U-chips and extending tool service life.

A barrel-shaped threaded grinding tool increases slip velocity to improve machining accuracy while extending tool life despite reduced effective surface area.

Programmable three-axis motion of a zero lead cutting tool resolves the trade-off between cycle time reduction and gear profile quality improvement.

Integrating deburring and recess machining into high-speed gear cutting reduces total processing time by eliminating separate workpiece handling steps.