Forging Press Operation Guide: Standard Operating Procedures and Best Practices

## Introduction Forging presses are critical equipment in the metal forming industry, used to shape heated metal billets into desired forms through compressive force. The combination of high temperatures, heavy loads, and precision requirements demands strict adherence to operating procedures. This guide covers standard operating practices drawn from Chinese forging industry experience. ## Pre-Operation Preparation ### Operator Requirements - Operators must complete specialized training and be certified for forging press operation. - Review shift handover records to understand equipment status and any outstanding issues. - Wear appropriate personal protective equipment including heat-resistant gloves, safety glasses, steel-toed boots, and protective clothing. ### Equipment Inspection 1. Check the lubrication system — ensure all oil levels meet specifications and lubrication pumps are functioning. 2. Inspect all fasteners and bolts for proper tightness, especially on die mounting areas. 3. Verify safety protection devices including guards, light curtains, and interlocks. 4. Check die condition — confirm dies are firmly mounted, properly matched, and free of cracks or excessive wear. 5. Test the insurance (overload protection) device to ensure it responds correctly. ### System Startup 1. Initiate the hydraulic or mechanical power system following the manufacturer's startup sequence. 2. Verify that the flywheel or hydraulic pump reaches proper operating speed/pressure. 3. Perform 2-3 dry cycles to confirm smooth slider movement and proper control response. 4. For hot forging, bring the heating system to the required temperature and verify uniformity. ## During Operation ### Workpiece Handling - Coordinate with team members — forging operations often require multiple operators working in sequence. - Place heated billets stably and accurately in the die cavity. - Maintain focused attention during part transfer to avoid misplacement. - Use appropriate tongs and handling tools rated for the workpiece weight and temperature. ### Safety During Operation - **No body parts in the die area**: Keep all body parts away from the die zone and moving components during press operation. - **No die adjustment during rotation**: Never adjust or change dies while the flywheel is rotating or the hydraulic system is pressurized. - **Isolate power for maintenance**: When maintenance is required, turn the main power switch to OFF, remove the key, close the air supply, and wait for the flywheel to stop completely. - **Stop on fault detection**: Immediately halt operation if any transmission mechanism, safety device, or control circuit malfunction is detected. ### Die Condition Monitoring - Continuously observe die fastening and wear condition. - Stop immediately if die shifting, cracking, or abnormal wear is detected. - Allow dies to cool periodically during extended hot forging runs to prevent thermal fatigue. ## Post-Operation Procedures 1. **Shutdown Sequence**: Follow the manufacturer's prescribed shutdown order — typically hydraulic system → heating system → main power. 2. **Workpiece Collection**: Ensure all forged parts are properly collected and staged for downstream processing. 3. **Clean Work Area**: Remove all scale, slag, and debris from the press bed and surrounding area. 4. **Die Maintenance**: Inspect dies for wear; apply anti-corrosion treatment for dies that will be stored. 5. **Equipment Wipe-down**: Clean oil and grease from external surfaces. 6. **Shift Handover**: Document all operational notes, anomalies, and maintenance needs in the shift record. ## Quality Control Integration - Monitor forging temperature throughout production — temperature variations directly affect dimensional accuracy. - Perform in-process dimensional checks at defined intervals. - Adjust press parameters (force, speed, dwell time) based on quality inspection results. - Maintain traceability records linking each batch to press settings and operator.