Case Study: Improving Tool Life for Indian Client's High Chromium Cast Iron Valve Seat Processing
Recently, we received a request from a client in India who had previously purchased TCGW090204 CBN inserts from a Chinese brand. The client reported that the tool life was extremely short—after machining just 14 holes, the tools would become dull. The workpiece was a valve seat made from high chromium cast iron. After reviewing the tool solutions provided by Morecuttingtools to other clients, the customer expressed great confidence in our CBN tools. They requested our help in selecting the right grade and adjusting machining parameters to significantly improve tool life, aiming for a target of 1000-1200 pieces per tool.
Working Conditions:
1. Workpiece: Valve seat
2. Material: High chromium cast iron
3. Hardness: Exhaust seat - 27-35 HRC; Inlet seat - 68-78 HRA
4. Processing areas: Inlet chamfer (45°) and exhaust chamfer (60°)
5. Machining type: Continuous cutting
6. Cutting depth: To be determined
7. Process type: Semi-finish and finish
8. Diameter: Inlet seat - 42.7 mm; Exhaust seat - 39 mm
9. Feed rate: 0.10 mm/rev
10. Cutting speed: 90 m/min
The engineers at Morecuttingtools, leveraging past customer experiences and the detailed information provided by the client, are currently in discussions to develop the best solution. We are confident that our CBN inserts, known for their excellent wear resistance and impact toughness, will not only enhance machining efficiency but also significantly extend tool life for the customer.
