What are the requirements for Custom Metal Stamping?

1. Material Selection:
Type of Metal: The type of metal used should therefore correspond to the function of the part, taking into consideration as regards strength, electrical conductivity, and resistance to corrosion such as steel, aluminum, brass, copper, and stainless steel.
Thickness and Hardness: These should be properly in a position to withstand the thickness and hardness necessary for stamping together with the design handles.

2. Design Specifications:
Detailed Drawings: Dimensions, tolerances, and particularities should be given on technical drawings of materials and requirements for their production.
Tooling Design: This means that the ooling design must be very accurate so as to be able to make the actual stamping dies to produce the parts as desired.

3. Tolerances:
Dimensional Accuracy: Tolerances have to be explicitly stated and MUST be possible with the selected stamping and material type.
Bend and Form Tolerances: If the part contains bends or any forms that are difficult to define, such forms must have also laid down tolerances.

4. Surface Finish Requirements:
Texture and Finish: An identification of the surface finish standards should be provided together with any further operations that may be necessary subsequent to the stamping processes, for instance, plating, painting, or polishing.
Edge Quality: The edges after stamping (sharpness and presence of burrs) should meet the need for safety and functionality of the design.

5. Quality Control:
Inspection Criteria: The characteristics of inspection that must be adhered to include scope defined specifically for a part for the purpose of ascertaining whether they meet the specified design or not.
Sampling and Testing: It is important that the prototypes and samples should be subjected to a host of tests to determine their compliance with the standard quality and performance.

6. Production Volume and Lead Time: Production Volume and Lead Time:
Quantity: The required amount of actual production has to be taken into account in order to decide regarding the tooling and the means of production which is the most effective.
Lead Time: The time taken to develop tooling and the production lead time should be reasonable and mutually decided by both the manufacturer and the client.

7. Cost Considerations:
Material Costs: Metal material should also be taken to be costly and hence its cost should be included in the cost of production.
Tooling Costs: It is very often to have large and expensive TO for custom tools, especially for complex parts.

8. Post-Stamping Processes:
Secondary Operations: Other holes may be required, they may need to drill, tap, and possibly weld and all these may have to be taken into account in terms of planning as well as cost.
Packaging and Delivery: Often, the parts may need special packaging for the protection of the parts during transportation especially when the orientation of the part is very sensitive.

9. Regulatory and Safety Compliance:
Industry Standards: It is mandatory for parts to meet the standards that are applicable in the specific sector, this due to the fact that some industries have set specific rules and regulations that need to be followed of which include the automotive and health sectors.
Safety Requirements: Protection measures such as putting on coatings or very efficient treatments ought to be considered.

10. Communication and Collaboration:
Technical Support: Post-purchase communication between the client and the manufacturer is necessary to attend to problems that may occur in the course of development and manufacturing.
Feedback Mechanism: Feedback and adjustment should occur for fine-tuning the process and for subsequent production runs. 

Achieving these requirements means that projects in custom metal stamping are intricately done, timely, and to the best standard. The development of such products should involve cooperation with manufacturers who possess a great deal of experience in the field.