Compound Die

Understanding Compound Dies

A compound die differs significantly from simple and progressive dies. While a simple die performs one cut per stroke and a progressive die performs multiple operations across several stations, a compound die executes two or more cutting operations (like blanking an outer shape and piercing inner holes) at the same station during one press cycle. The cutting elements for these operations are integrated within the upper and lower die sections.

Key Advantages:

• High Accuracy: Delivers excellent precision between features cut in the same stroke (e.g., concentricity of a hole within a blank) because the material doesn't move between cuts.
• Suitable for Flat Parts: Primarily used for producing flat components where feature relationships are critical.
• Single Station Efficiency: Completes multiple cuts without needing strip progression like a progressive die.

Considerations:

• Complexity: More complex design and construction than simple dies, requiring higher precision in manufacturing.
• Slower Production Rate: Typically slower than progressive dies due to the ejection process needed after each stroke.
• Limited Forming: Primarily used for cutting operations; complex forming is usually not feasible.
• Higher Initial Cost: More expensive to build than simple dies due to complexity.

Shreeji Gears: Your Ahmedabad Compound Die Specialist

Our expertise in precision engineering enables us to design and manufacture compound dies that deliver superior accuracy and reliable performance.

Why Choose Shreeji Gears for Compound Dies?

• Intricate Die Design: Advanced CAD capabilities to design complex compound dies with integrated punches, die elements, strippers, and ejectors, ensuring correct timing and function.
• High-Precision Manufacturing: Utilizing CNC machining, Wire EDM, Spark Erosion, and precision grinding (including jig grinding) to achieve the extremely tight tolerances required for compound die components.
• Premium Tool Steel Selection: Selecting appropriate high-wear-resistant tool steels (D2, HCHCr, M2) or carbide for cutting elements to maximize tool life and maintain sharp edges.
• Expert Heat Treatment: Precise control over hardening and tempering processes to optimize the performance characteristics of tool steel components.
• Meticulous Assembly & Fitting: Skilled assembly ensuring perfect alignment and minimal clearance between mating cutting components.
• Rigorous Tryout & Validation: Comprehensive testing on presses to verify part accuracy, dimensional stability, and reliable ejection of both the part and slugs.

General Technical Specifications (Customizable):

• Die Type: Compound Die (Multi-Cut, Single Station).
• Operations Performed: Typically Blanking + Piercing, Inner/Outer Contour Cutting.
• Component Material: Tool Steel (D2, HCHCr, O1, A2, M2, etc.), Carbide.
• Die Set Material: Mild Steel, Cast Iron.
• Accuracy Achieved: High precision on feature relationships (Specify tolerance requirements).
• Applicable Material: Mild Steel, Stainless Steel, Aluminium, Copper, Brass, Electrical Steel, etc. (Specify thickness).
• Press Compatibility: Designed for Mechanical/Hydraulic Presses (Specify tonnage, stroke, shut height).

Ensure high accuracy and precise feature relationships in your stamped parts. Choose Shreeji Gears, your specialist compound die manufacturer in Ahmedabad. Contact us today to discuss your high-precision tooling needs!