Data center & HPC – MQDB Socket valve

Tooling concepts

• Optimal tools are selected to machine socket valve-specific features, including half-split holes and complex lobe profiles.
• Highly rigid tooling, optimized cutting edges, and suitable grades ensure consistent dimensional accuracy and excellent surface quality.
• Excellent chip control, internal coolant delivery, and exchangeable-head tooling systems combine stable machining with high productivity.

Process 1: Hole making

Benefits

• Ideal for half-split (half-moon) hole drilling. Even when material is present on only one side, the entire cutting edge engages evenly, suppressing tip deflection to achieve high-precision hole positioning.
• Even under interrupted cutting—where the cutting edge repeatedly engages and disengages at the half-split section—the flat cutting edge absorbs the impact, suppressing chipping and breakage and contributing to extended tool life.
• Its structure directs the cutting load straight along the axial direction and resists radial deflection, delivering excellent straightness even under unstable, one-side-open conditions.

Flat Drill (Special tool)

Process 2: External grooving & turning

Benefits

• A highly rigid design that maximizes holder rigidity prevents insert displacement during machining, achieving stable grooving and a good surface finish.
• The GW chipbreaker is a versatile, all-purpose chipbreaker that combines sharpness with excellent chip control. This multi-functional type also supports side-turning operations, delivering good chip control and superior groove-bottom surface quality.
• The DM4 grade is well suited for turning difficult-to-cut stainless steels and heat-resistant alloys, contributing to stable machining and extended tool life.
• The thick-film TiAlN coating suppresses tool damage caused by machining heat. It balances heat resistance and wear resistance even in high-load operations such as parting off and grooving, ensuring stable machining.

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Process 3: Shoulder milling & Deburring

Benefits

• The TEC-E4L-CF is a 4-flute square end mill. Its unequal-pitch (variable-pitch) design reduces chatter vibration, enabling stable shoulder milling even on low-rigidity machines. A unique cutting-edge specification provides excellent edge sharpness, delivering superior surface finish quality even in high-efficiency machining.
• The TEB-A2-C-M is a 2-flute ball-nose end mill. Its small-diameter ball-nose geometry (R0.5 tip) is ideal for detailed deburring of complex lobe-profile areas.
• The TiAlN coating provides excellent wear resistance, achieving stable, long-tool-life machining.

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TEC-E4L-CF (Square endmill)

TEB-A2-C-M (Ball endmill)

Process 4: External turning

Benefits

• The TMV chipbreaker supports both vibration (LFV) and conventional cutting, delivering excellent chip control and reduced cutting-edge wear even at high feed rates, contributing to stable OD turning.
• ST4 grade with advanced high-Al CrAlN coating resists wear, oxidation, and built-up edge, delivering extended tool life and outstanding surface quality.
• Quick-change head system minimizes setup time and maximizes machine uptime.
• Internal coolant delivery enhances edge cooling and chip evacuation for reliable, stable machining.

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Process 5: External grooving

Benefits

• The head-exchange system allows setup changes with head replacement alone, while keeping the shank mounted on the machine—dramatically improving insert replacement and setup operations.
• Economical 4-corner design. Mounting a ground-grade insert in a unique 3-point clamp (proprietary pocket) achieves excellent repeatable cutting-edge positioning accuracy and clamp rigidity.
• The sharp-edge specification delivers a keen cutting action with low cutting resistance, achieving a good surface finish.
• The SH7025 grade provides excellent wear resistance and fracture resistance through its TiCN + multi-layer TiAlN coating. Its anti-welding coating technology maintains stable machining dimensions even in stainless steel machining.
• The unique coolant delivery system supplies coolant from both the rake face and flank face sides directly to the cutting edge. It provides superior chip control and cooling performance, even in difficult-to-machine materials, ensuring stable and highly productive machining.

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Process 6: Parting off

Benefits

• The combination of the mold breaker and a high-rigidity holder achieves stable parting-off operations. The sharp cutting edge, created by flank grinding, reduces cutting resistance and prevents rough machined surfaces.
• An original mold breaker curls chips into a coil (spiral) shape, consistently curling and breaking chips to suppress chip-related troubles during parting-off operations.
• ST4 grade with advanced high-Al CrAlN coating resists wear, oxidation, and built-up edge, delivering extended tool life and outstanding surface quality.
• Quick-change head system minimizes setup time and maximizes machine uptime.
• Internal coolant delivery enhances edge cooling and chip evacuation for reliable, stable machining.

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