Wear Protection for Forging Tools
In die forging, dies, matrices and punches operate at the limit: with every stroke, high temperatures and enormous pressure combine, and the tool surface constantly alternates between hot and cold.
With every batch, impressions wear down, edges break out and functional surfaces lose their dimension. A new die is expensive and often not available for weeks.
We supply wear protection solutions, spare parts and welding consumables that address exactly these issues and keep your components in service longer.
Typical Welding Defects on Dies and Forging Tools
When reworking massive, heat-resistant dies, heat management determines success or failure. Two defect patterns occur particularly frequently — both can be reliably avoided with the right approach.
Problem: Hot Cracks Due to Incorrect Heat Management
If preheating before welding is insufficient, cooling is too rapid or an unsuitable alloy is used, hot cracks form in the applied layer. On massive dies and die halves, the tool then cracks under thermal stresses.
Our Solution: Matched Pre- and Post-Weld Heat Treatment
With controlled preheating, a suitable layer build-up and slow cooling, we keep thermal stresses low. Heat-resistant, ductile consumables ensure a crack-free layer.
Problem: Distortion Due to Uneven Heat Input
If heat is introduced unevenly in massive dies or die halves, the tool distorts. Impressions and calibration zones lose their nominal dimension and dimensional accuracy is gone.
Our Solution: Controlled Heat Management and Precise Reworking
A matched layer sequence and uniform heat management keep distortion minimal. We then bring functional surfaces to exact nominal dimension by milling, grinding or EDM.
Suitable Welding Consumables for Dies, Matrices and Punches
In forging, a particular combination dominates: cyclic temperatures combined with compressive stress. The filler material must be heat-resistant and simultaneously tough. We select it according to base material, forging stock and load on the component. On heavily loaded functional surfaces, we combine ductile buffer layers with heat-resistant, hard top layers. This allows the coating to withstand temperature changes and pressure over long production runs. Via the following wear types you can reach the appropriate welding consumables for each application area.
Corrosion
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Metal-to-metal friction wear
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Impact stress
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Temperature
Show productsSpare and Wear Parts for Die Forging
In die forging, tools such as dies and die inserts, pre-forging and finish-forging dies, profile matrices and calibration inserts, piercing and pressing mandrels, or punching knives, hot shear blades and flash trimmers are subject to particularly heavy wear. We rebuild them with hard overlay and restore them. Here you will find suitable wear and spare parts for your equipment:
Fully Automated Overlay Welding and Additive Manufacturing
In the Laser Competence Centre, capilla brings together modern technologies for coating and component manufacturing.
Here, components are specifically treated, wear-resistant layers are applied and complex components are manufactured using additive processes such as 3D cladding.
This enables solutions that go beyond conventional welding applications and make components sustainably more capable.
Andreas Frische
Technical Management
Do you have wear problems, recurring damage or want to operate your plant more economically?
Our experts support you in selecting suitable welding consumables, in treating components and in developing long-lasting solutions.
Together we will find the approach that fits your application both technically and economically.
+49 5202 97790-54
Available from 07:45 - 16:30
a.frische@capilla-gmbh.de
Available from 07:45 - 16:30
Why capilla
Holistic Approach
From welding consumable to finished component – all solutions work together.
Focus on Wear
Specialisation in applications with high abrasion and mechanical load.
Practice-Oriented Consultation
Analysis of real applications rather than theoretical recommendations.
Proprietary Technologies
Laser Competence Centre for coating and additive manufacturing.
capilla Wear Protection to Bulk Material Specification
We do not work with standard recipes. Whether bulk material, medium or workpiece — what matters is always the actual load acting on the component. Grain size, hardness, temperature, flow or chemical aggressiveness determine which type of wear dominates and which protection truly fits.
Before we define the welding consumable, process and layer structure, we analyse the operating conditions. This results in a solution tailored to your component. Tested consumables and defined parameters are part of this — supplemented by standards-compliant documentation for safety-critical components.
Frequently Asked Questions about Wear Protection in Forging
On forging tools such as dies, die inserts and profile matrices, high cyclic temperatures combined with compressive stress occur. Every forging stroke means a temperature change on the tool surface and simultaneously extreme mechanical load. This combination generates thermal stresses that can lead to tool surface wear and cracks.
Particularly prone to wear are dies and die inserts, die halves, pre-forging and finish-forging dies. Added to these are profile matrices, calibration inserts, piercing mandrels and pressing mandrels, as well as punching knives, hot shear blades and flash trimmers. All these forging tools are exposed to extreme stress over long production runs in die forging.
Dies and forging tools are repaired by welding with ductile and heat-resistant hard consumables. Material is applied specifically to worn functional surfaces, then brought back to nominal dimension by precise reworking. This allows die inserts, profile matrices and punching knives to be rebuilt multiple times instead of being replaced.
Critical is missing or insufficient pre- and post-weld heat treatment. Without controlled preheating and slow cooling, the risk of cracking from thermal stresses increases significantly — especially on massive dies and die halves. Even with heat-resistant alloys, incorrect heat management and unsuitable welding parameters lead to hot cracks and distortion.
Cracks and distortion in dies are avoided by preheating and slow cooling. Matched pre- and post-weld heat treatment reduces thermal stresses; a suitable layer build-up prevents hot cracks in the applied layer. For large forging tools, heat management determines subsequent dimensional accuracy and service life.
Heat-resistant and tough alloys are suitable for forging tools — capable of permanently withstanding cyclic temperatures and compressive stress in die forging. Material selection is based on base material, forging stock and load on the specific component. For heavily stressed functional surfaces, ductile buffer layers are combined with heat-resistant hard consumables.
The service life of dies is increased by targeted overlay layers at the most heavily stressed zones. Heat-resistant and tough alloys are applied precisely where tool surface wear is most intensive — at impressions, calibration inserts and punch edges. This significantly increases the number of parts produced per tool.
Typical defects when welding forging tools are hot cracks and distortion. Hot cracks arise from too-rapid cooling or unsuitable alloys; distortion from uneven heat input in massive dies or die halves. Both defects reduce dimensional accuracy and must be actively prevented through controlled heat management.
Quality is assured through experience and strict process control. Clean preparation of the weld zone, suitable heat-resistant alloys, defined preheating and cooling parameters, and a matched layer build-up form the basis. Especially in die forging, where tool costs and production volumes are high, process control determines the economic viability of restoration.
Dimensional accuracy is maintained through precise reworking. After overlay welding, dies, die inserts and profile matrices are mechanically brought back to nominal dimension — frequently by milling, grinding or EDM. This allows functional surfaces, impressions and calibration zones to be restored with reproducible accuracy.