Metal Rolling TRIZ Cases
- Alloy 718 Ring Rolling With Circularity Correction to Inhibit AGG
Controlled 900-980°C ring rolling followed by no-reheat circularity correction preserves strain, inhibits AGG, and improves ring circularity.
- Electromagnetic Rolling Mill Actuation Without Hydraulic Oil
Electromagnetic actuators replace hydraulic drives in hot rolling mills to remove oil-related fire risk, cut maintenance, and improve positioning.
- Alloy 718 Ring Rolling for Circularity Without Abnormal Grain Growth
Controlled ring rolling and no-reheat circularity correction preserve strain in Alloy 718 rings to suppress abnormal grain growth.
- Tapered Roller Speed Control for Ring Rolling Centring
Stored diameter-based speed corrections keep tapered rollers aligned with ring growth, reducing creep and improving rolling repeatability.
- Tapered Roller Speed Control for Uniform Ring Rolling
Variable PI/PID coefficients adjust tapered roller speed to keep ring growth uniform and reduce circularity, flatness, and cylindricity defects.
- Embossing Roll Buffer Channels for Straight Tube Weld Edges
Buffer channels beside the embossing zone absorb sideways metal flow, preserving strip edge straightness and improving aluminum tube weld quality.
- Oil Supply Pipe Thread Rolling to Prevent Cracks in Metal Pipes
Sequential ridge rolling forms internal pipe threads without overlapping contact, reducing thinning and crack risk in enlarged metal pipes.
- Ring Rolling Inductor Tracking for Stable Workpiece Heating
A tracked inductor keeps constant coupling distance during ring rolling to offset rising heat loss without a cumbersome magnetizable core.
- Embossed Pipe Seam Welding with V-Groove Sheet Forming
Preformed V-grooves and seam flattening let embossed pipe mills weld both sides cleanly while preserving pattern shape and watertightness.
- Interlocking Embossing Roller for Weldable Embossed Metal Pipe
Small-width edge planes and a seam groove keep embossed patterns aligned for welding and hide weld scars in embossed metal pipe.