16/04/2026
Here are the four critical parameters you must include in your next drawing die RFQ to save time and guarantee precision.
1. Precise Inlet and Outlet Diameters
This is the most fundamental piece of information, but it requires precision. Simply stating the final wire size is not enough. You must provide both the incoming wire diameter (inlet) and the target finished diameter (outlet).
Why it matters: Providing both numbers allows our engineers to calculate the exact reduction rate (area reduction). This dictates the geometry of the die, specifically the approach angle and the bearing length. An incorrect reduction calculation leads to wire breaks, cuppy wire, or central bursting.
Pro Tip: Always specify your required tolerance (e.g., +0.000 / -0.002 mm).
2. The Specific Wire Material
Not all metals behave the same way under pressure. Drawing soft, annealed copper requires a vastly different internal die profile compared to drawing high-carbon steel, stainless steel, or tungsten wire.
Why it matters: The hardness, tensile strength, and plasticity of your wire material determine the required grade of the PCD blank and the specific angles inside the die. For instance, harder materials require a smaller reduction angle to minimize drawing force and prevent rapid die wear.
3. Targeted Drawing Speed
Are you running a slow, multi-pass slip machine, or a high-speed, state-of-the-art continuous drawing line?
Why it matters: Speed generates friction, and friction generates heat. If we know you are drawing at extremely high speeds, we will customize the die’s bell radius and exit angle to accommodate better coolant flow and prevent the heat fatigue that leads to premature die failure.
4. Your Lubrication Method (Wet vs. Dry)
Never submit an RFQ without mentioning how you plan to lubricate the process.
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