Stamping dies and tooling plates contain guide-post holes, guide-bushing preparation holes, dowel holes, locating holes, mounting holes, punch-retaining holes, threaded-hole preparation, clearance holes, blind holes, stepped holes, and repeated precision hole patterns.
These features are commonly machined in punch plates, die plates, stripper plates, pressure plates, retaining plates, backing plates, guide plates, and other stamping-die components. Materials may include pre-hardened mold steel, tool steel, high-speed steel, hardened die steel, cast iron, and other wear-resistant tooling materials.
High material hardness, large plate dimensions, close positional relationships, repeated hole layouts, thick sections, and heat-treated surfaces increase the risk of cutting-edge wear, drill walking, chip packing, hole-position variation, and inconsistent feature depth.
Landun CNC Tool supports drill selection and custom carbide drill development based on the die drawing, workpiece material, hardness, plate thickness, hole diameter and depth, tolerance, entry condition, coolant method, and current machining problem.
Punch plates, die plates, retaining plates, and hardened tooling components may cause rapid flank wear, cutting-edge chipping, rising spindle load, unstable hole diameter, or inconsistent tool life.
High material hardness, alloy content, heat-treated surfaces, local hardness variation, cutting heat, and unsuitable edge preparation can accelerate coating wear and cutting-edge damage.
Wear-resistant coatings, controlled edge preparation, stable drill-point geometry, and suitable carbide grades help improve cutting-edge strength and tool-life consistency. Drill geometry should be matched to the material hardness, hole depth, coolant condition, machine rigidity, and production volume.
Stamping-die assemblies often contain corresponding guide holes, dowel holes, mounting holes, punch-retaining holes, and bolt patterns across several matching plates.
Large plate dimensions, fixture movement, machine-positioning variation, uneven entry surfaces, spindle runout, and accumulated tool wear can affect hole spacing and alignment between related components.
Stable drill-point geometry, rigid workholding, low-runout toolholding, and controlled tool wear help improve repeated-hole position consistency. Spotting may also be used where the surface condition does not provide reliable drill centering.
Deep mounting holes, guide-related holes, punch-retaining holes, threaded-hole preparation, and through holes in thick tooling plates may experience chip congestion, rising cutting load, poor hole surfaces, drill deviation, or tool breakage.
Long drilling depth, limited flute capacity, insufficient coolant pressure, unsuitable drilling cycles, high runout, or chips remaining inside blind holes can interrupt normal chip evacuation.
Through-tool coolant, suitable flute geometry, stable coolant pressure, rigid toolholding, and controlled drilling parameters help move chips away from the drill point. Longer holes may require an accurate pilot hole and controlled entry, drilling, breakthrough, and withdrawal.
Guide-post holes, guide-bushing preparation holes, dowel holes, pilot-pin holes, and locating features require stable position, straightness, diameter allowance, and alignment between assembled die plates.
Uneven entry surfaces, inaccurate pilot holes, excessive runout, insufficient fixture rigidity, unsuitable drill length, and high cutting forces can cause drill walking or gradual hole deviation.
Short and rigid entry tools, accurate pilot-hole preparation, low-runout holders, stable fixturing, and suitable point geometry help improve hole position and straightness. Controlled drilling allowance can also support subsequent reaming or boring operations.
Stamping-die components may require stepped holes, punch-retaining features, shallow counterbore-related holes, flat-bottom blind holes, locating shoulders, and combined drilling-and-chamfering operations.
Producing related features with several separate tools can introduce accumulated positioning errors, inconsistent depth, shoulder variation, excessive tool changes, and longer machining cycles.
Step, flat-bottom, chamfer, and combination carbide drills can machine multiple related features in fewer operations. This helps improve concentricity, feature depth, shoulder position, and production efficiency.
RECOMMENDED DRILL SERIES
Common drilling applications include punch-retaining holes, mounting holes, dowel holes, locating holes, threaded-hole preparation, clearance holes, blind holes, and repeated punch-position patterns.
Typical features include die-opening preparation holes, guide holes, dowel holes, mounting holes, pilot holes, threaded-hole preparation, relief holes, and precision locating features.
Common applications include punch-clearance holes, guide holes, return-pin holes, mounting holes, locating holes, spring-related holes, and repeated precision hole patterns.
Typical applications include support holes, bolt holes, guide-post preparation holes, dowel holes, threaded-hole preparation, deep through holes, blind holes, and combined-diameter features.
For mounting holes, dowel holes, locating holes, punch-retaining holes, threaded-hole preparation, clearance holes, and general drilling in stamping dies and tooling plates.
For small punch-related holes, pilot holes, lubrication holes, narrow locating features, compact die components, and other small-diameter precision applications.
For long guide holes, deep mounting holes, thick tooling plates, support blocks, and other high depth-to-diameter features in stamping-die assemblies.
For punch-retaining holes, stepped features, flat-bottom holes, combined diameters, drilling and chamfering, special lengths, and drawing-based non-standard die structures.
| INFORMATION | WHY IT MATTERS |
|---|---|
| Die or tooling-plate drawing | Confirms hole positions, matching plate relationships, punch patterns, guide features, tolerances, and special structures. |
| Workpiece material and hardness | Helps determine carbide grade, drill geometry, edge preparation, coating, coolant demand, and cutting parameters. |
| Plate dimensions and thickness | Helps determine the required working length, drilling-depth series, rigidity, fixture method, and coolant configuration. |
| Hole diameter, depth, and type | Defines drill size, depth-to-diameter ratio, and blind-, through-, step-, flat-bottom-, or combined-hole requirements. |
| Position and alignment tolerances | Helps evaluate drill entry, runout control, matched-hole accuracy, finishing allowance, and inspection requirements. |
| Entry, exit, and surface conditions | Helps assess drill walking, heat-treated surface entry, breakthrough impact, burr risk, and cutting stability. |
| Machine, holder, fixture, and coolant conditions | Helps evaluate spindle runout, machine rigidity, plate support, coolant pressure, and chip evacuation. |
| Current machining problem | Clarifies cutting-edge wear, drill deviation, chip packing, hole variation, burrs, breakage, alignment problems, or cycle-time targets. |
Review the component drawing, workpiece material, hole structure, machine conditions, and current drilling problem.
Select a suitable standard drill series or develop a custom drill based on hole depth, tolerance, entry conditions, and machining requirements.
Produce the drill with controlled geometry, edge preparation, coating selection, and multi-stage inspection to support consistent quality.
Support sample testing, specification confirmation, and stable repeat production after the drill solution is approved.
Walter 5-axis grinding supports stable drill-point geometry, flute consistency, diameter accuracy, and shank concentricity.
Controlled edge preparation helps improve cutting-edge consistency, coating adhesion, wear resistance, and tool-life stability.
Coating selection is matched to the workpiece material and drilling conditions to improve wear resistance, heat control, and cutting stability.
HELICHECK PLUS and 150× / 300× visual inspection help verify dimensions, cutting edges, coating appearance, and overall tool condition.
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