Discover a wealth of informational materials through GUNRI’s comprehensive resource hub, featuring an array of valuable content ranging from Frequently Asked Questions to Support Bulletins.
In precision stamping and tooling, selecting the right punch type is critical for tool life, performance, and part quality. Punches can be categorized by structure, function, and surface treatment. Below is a structured overview: 1. Basic Punches Regular PunchesThe most…
What is the stamping process in sheet metal and why are die components essential? Sheet metal stamping uses a press and die set to cut or form flat metal sheets into parts. Die components such as punches, guide systems, and…
Stator core laminations are usually produced with high-speed progressive dies or compound dies. These dies operate at very high strokes per minute, which requires reliable and long-lasting precision components. 1. Cutting Components 2. Guiding & Positioning 3. Pressing & Stripping…
In the fast-growing new energy vehicle (NEV) industry, the automotive motor is one of the most critical components. At the heart of the motor lies the silicon steel lamination stack, which must be produced with precision stamping dies capable of…
250815 means August 15th, 2025.
In modern automotive stamping and forming processes, Automotive Line Nitrogen Gas Springs have become a critical component. Designed specifically for high-speed, high-volume automotive production lines, these gas springs provide stable force, long service life, and enhanced tool performance compared to…
In metal stamping, toolmakers and operators are usually focused on wear, alignment, and material feed. But there’s another, less visible issue that can quietly shorten tool life: punch pumping. What Is Punch Pumping? Punch pumping refers to micro-movements of the…
Selecting the correct punch-to-die clearance is one of the most critical parameters in stamping tool design. However, there is no universal value—clearance must be adjusted based on both material thickness and compositi. These Thic For thick materials, the standard clearance…
You’ve invested in top-tier presses, precision-cut punches, and state-of-the-art tool steels. But if you’re still battling misaligned dies, premature wear, or costly downtime, there’s one culprit you might be overlooking: the guide bushing. In stamping—a process where every millimeter counts—this…
Slug pulling occurs when the punch, during its return stroke, unintentionally lifts the slug (the blanked-out piece) back up from the die hole. This can lead to die damage, punch breakage, and part defects—especially in high-speed operations (400–3000 SPM), where…
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