Metal Cutting Blade

A metal cutting tool is an industrial tool installed on various cutting equipment, which processes materials such as steel plates, steel pipes, and metal coils into specified shapes or sizes through mechanical shearing, cutting, thermal methods, etc.

Products Provided by Kedel

We offer the following types of blades. Whether you need standard sizes or customized sizes, we can precisely meet your unique requirements.

挤压分切刀上刀

挤压分切刀下刀

剪切圆刀

锯片刀

Need custom blades? We design and make them

Application Scenarios

Metal slitting knives precisely slit stainless steel, aluminum, and copper coils to provide raw materials of suitable widths for downstream sectors like kitchenware, electronics, and packaging, supporting product manufacturing.

stainless steel coil

aluminum coil

Copper coil

Uncover Your Needs with Us!

If you have customization needs for metal slitting blades (including non – edged moving blades, fixed blades, edged circular blades, and serrated circular blades), please feel free to contact us! Provide details like the brand/model of slitting equipment (e.g., slitting machines, rotary shears), tool holder installation dimensions, blade performance requirements (material, precision, wear resistance), and actual working conditions (metal type, thickness, production speed). Our engineers will craft a tailored solution and follow up within 72 hours to boost your metal slitting efficiency and quality.

What is a Metal Cutting Blade?

The circular blades for rotary shears are industrial cutting tools that longitudinally slit metal coils (such as steel strips and aluminum coils) into specified widths. Achieving continuous processing through the high-speed rotational shearing of upper and lower blades, they suit 0.1-8mm metal materials with a slitting tolerance of ±0.1mm and minimal burrs. Widely used in mass slitting production for steel, automotive, and other industries.

What are the common tool types used in Metal Cutting Blade slitting?

写一段说明，各种不同的分切方式，会造成xxx影响

圆刀

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底刀

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锯片刀

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What are the common working methods?

介绍最终成型前需要不同工艺流程

压切分切

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圆盘剪分切

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锯切

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What materials can be used to make cutting blades?

Based on the hardness, thickness of processed materials, and differences in operational conditions, cemented carbide materials with different compositions (such as TiC/YG types) and properties (wear resistance/impact resistance) are selected to achieve the optimal balance among slitting efficiency, tool life, and machining precision.

Shear Slitting	YT15, YW1	P10~P20	Steel strip, stainless steel strip (0.5-3mm)
	YG6, YG8	K10~K20	Aluminum strip, copper strip, cast iron sheets (≤2mm)
Extrusion Slitting	YG15, YG20C	K30~K40	Aluminum foil (<0.1mm), soft metal sheets
Saw Slitting	YG8N, YT5	K20~P30	Thick stainless steel plates, alloy steel (＞3mm)
	YG6A, YG11C	K15~K25	Thick aluminum alloy plates, cast iron parts
Precision Slitting	YG3X, YT15X (coated)	–	Electronic-grade copper foil, ultra-thin metal strip (tolerance ±0.05mm)

What parameters do we need to understand?

Understanding these parameters enables the optimal balance among slitting efficiency, machining precision, and tool life by precisely matching tool material, geometry, and processing conditions (e.g., material properties, equipment parameters).

I. Key Parameters for Purchase

Material Grade & ISO Class

E.g., YG6 (K10), YT15 (P10), directly determining tool adaptability to steel/aluminum/cast iron (refer to preceding grade table).

Tool Geometric Parameters

Edge angles (rake/relief angles): Affect cutting resistance (e.g., shear slitting blades often have 5°–15° rake angle to reduce adhesion).
Edge precision (roughness Ra≤0.8μm): Precision slitting requires edge chipping ≤0.01mm.

Dimension Specifications

Diameter/width (e.g., saw blade diameter φ100–500mm), thickness (shear blade 3–10mm).
Installation interface (bore diameter, keyway dimensions) matching slitting equipment spindle specs.

Coating Types

TiN (general wear resistance), Al₂O₃ (high-speed/high-temperature), TiCN (anti-adhesion); coating hardness ≥3000HV.

Performance Indicators

Hardness (HRA≥89 for cemented carbide), flexural strength (≥1800MPa for impact resistance).
Temperature resistance (coated tools must specify max cutting temp, e.g., TiAlN coating withstands 1100℃).

II. Critical Parameters for Operation

Installation Parameters

Parallelism/coaxiality: Clearance between upper/lower shear blades controlled at 5%–10% of material thickness (e.g., 0.05–0.1mm for 1mm steel strip).
Saw blade installation runout ≤0.03mm to avoid vibration chipping.

Processing Parameters

Linear speed (m/min): 100–200m/min for aluminum strip shearing, 50–100m/min for stainless steel sawing.
Feed rate (mm/r): ≤0.5mm/r for thick plate sawing, ≤0.05mm/pass for foil extrusion slitting.

Cooling & Lubrication

Cutting fluid type: EP emulsion (8%–10% concentration) for steel, synthetic ester lubricant for aluminum.
Flow rate (L/min): ≥20L/min for high-speed sawing to prevent tool annealing.

Wear Monitoring Standards

Edge wear (VB): ≤0.3mm for general slitting, ≤0.1mm for precision slitting.
Chipping size: Replace if exceeding 0.5mm×0.2mm to prevent damage expansion.

Application Suitability

Material hardness (e.g., YT series for HRC≤30, YG series for HBS≤200).
Thickness range (e.g., YG20C suits <0.1mm aluminum foil extrusion, YT5 suits >3mm steel plate sawing).

III. Typical Scenario Parameters

Application Scenario	Key Parameters (Purchase + Operation)
1mm stainless steel strip shearing	Purchase: YT15 blade (P10), 5mm thickness, TiN coating. Operation: 0.05–0.1mm blade clearance, 80–120m/min speed, emulsion cooling.
0.05mm aluminum foil extrusion	Purchase: YG20C blade (K40), edge roughness Ra≤0.4μm. Operation: 5–8MPa extrusion pressure, no coolant (prevents aluminum chip adhesion), replace at VB≤0.05mm.
5mm aluminum alloy sawing	Purchase: YG8N saw blade (K25), φ300mm diameter, 60 teeth. Operation: 1500r/min speed, 0.2mm/r feed rate, aviation kerosene lubrication.

IV. Parameter Selection Logic

Before purchase: Core factors: “material type + thickness + precision” to match grade and geometry (e.g., lithium battery electrode slitting requires YG3X ultra-fine grain + edge R≤0.02mm).
Before operation: Verify “clearance-speed-cooling” via trial cutting (e.g., start at 50% rated speed, check burrs ≤0.03mm for qualification).

For specific equipment (e.g., circular blade slitter, band saw), additionally confirm tool-equipment compatibility (e.g., spindle power for high-speed cutting).

How to maintain and service cutting blades?

Through systematic maintenance of tools (such as cleaning, grinding, rust prevention, etc.), the multi-objective optimization is achieved for maximizing tool service life, improving machining precision stability, and controlling production costs.

I. Real-Time Maintenance During Operation

Cooling & Lubrication Control

For wet cutting, maintain cutting fluid concentration (EP emulsion 8%–10%) and flow rate (≥20L/min for high-speed processing); avoid dry cutting to prevent overheating and edge chipping.
When processing sticky materials like aluminum/copper, use compressed air to clear edge chip buildup every 30 minutes to prevent adhesive wear.

Dynamic Condition Monitoring

Stop operation immediately for edge wear inspection (grind if VB >0.3mm) when unusual cutting noise, increased vibration, or excessive burrs (e.g., >0.05mm) occur.
Avoid overload processing: For YG-series tools slitting steel, reduce feed rate to ≤0.2mm/r if material thickness exceeds 3mm.

II. In-Depth Maintenance After Use

Cleaning & Debris Removal

Use a soft brush with kerosene/alcohol to clean edges and tool surfaces; never use steel wool (risks coating delamination).
After processing brittle materials like cast iron, prioritize clearing debris from tool grooves to prevent chipping during next cutting.

Rust Prevention & Coating Care

Apply thin rust inhibitor (e.g., WD-40) after drying; coated tools must avoid chlorinated cleaners (prevents TiAlN coating corrosion).
If local coating delamination (>1mm²) is found, return for recoating immediately; do not continue use.

III. Storage & Transportation Specifications

Storage Environment Requirements

Store in temperature/humidity-controlled cabinets (20±5°C, humidity ≤50% RH), away from acids/alkalis.
Tools should stand vertically on specialized racks or be individually wrapped in anti-vibration foam to prevent edge collisions (especially for blades <2mm thick).

Transportation Protection

Use cushioning materials (epe foam/sponge) for long-distance transport; wrap edges with rust-proof paper, never mix with other tools.

IV. Grinding & Repair Essentials

Grinding Timing

Grind with diamond wheels when flank wear width VB ≥0.3mm (rough machining) or ≥0.1mm (finish machining).
For ultra-fine grain cemented carbides (e.g., YG3X), reduce wheel speed to ≤3000r/min to prevent decarburization from overheating.

Repair Limitations

Maximum 3 grindings per tool (grinding amount ≤0.1mm per time); scrap tools with chipping >1mm.
Coated tools must be recoated after grinding; uncoated tools require edge roughness inspection (Ra≤0.8μm).

How long can a blade typically be used?

By dynamically managing replacement cycles based on wear thresholds and operating conditions, it is possible to avoid precision failure or equipment malfunctions caused by excessive tool wear, while preventing cost waste from premature replacement, thus achieving a balance between machining efficiency and economic viability.

Tool Type	Common Materials	Typical Metal Processing Scenarios	Recommended Replacement Cycle (Based on Metal Processing Conditions)	Dynamic Adjustment Suggestions (Metal Processing Specifics)
Edgeless Circular Blade	Cemented Carbide (YG8), Tool Steel (Cr12MoV)	Metal plate rolling forming (e.g., automotive steel embossing), metal surface imprint marking	– For 2mm carbon steel plates: 10,000–20,000 cumulative rolls (replace when indentation depth <0.15mm vs. standard 0.3mm) – Replace when metal adhesion nodules appear or scratch depth >0.1mm	– Shorten cycle by 15% for every 10HB increase in plate hardness – Shorten cycle by 20% when rolling speed >20m/min (prevent overheating wear)
Bottom Blade (Stamping/Shearing)	High-Speed Steel (W18Cr4V), Cemented Carbide (YT15)	Stainless steel stamping (1–3mm), cold-rolled steel shearing	– For 304 stainless steel (2mm): 3,000–5,000 stamps or edge chipping >0.3mm – For Q235 steel (1mm): 8,000–12,000 shears (burrs >0.2mm on cut edge)	– Halve cycle when processing high-strength steel (tensile strength >600MPa) – Execute cycle at 70% when stamping oil is insufficient (enhance lubrication)
Edged Circular Blade (Cutting)	Coated Cemented Carbide (TiAlN/TiCN), Ceramic (Si₃N₄)	Aluminum alloy wheel milling, 45# steel turning, quenched steel (HRC45) milling	– Aluminum alloy (6061) milling: 2,000–2,500m cumulative milling at VC=300m/min (replace when aluminum adhesion causes roughness Ra >1.6μm) – 45# steel turning: 10–15h continuous cutting (flank wear VB≥0.2mm)	– Execute cycle at 1/3 of wet cutting when dry-cutting quenched steel (use EP cutting fluid) – Replace immediately if coating delamination >1mm²
Saw Blade	Cemented Carbide (YG6X/YT15), Diamond-Coated (PCD)	Carbon steel pipe sawing (Φ50mm), aluminum alloy profile cutting, titanium alloy bar cutoff	– Cemented carbide saw blade (45# steel, Φ50mm): 600–800 cumulative cuts (burrs >0.3mm on cut edge) – PCD saw blade (aluminum alloy): 15,000–20,000 cuts (tooth wear ≤0.1mm)	– Shorten cycle by 10% for every 1mm increase in pipe wall thickness – Shorten cycle by 30% for intermittent cutting (e.g., steel profiles) (prevent tooth chipping)

Metal Processing Special Notes

Impact of Material Hardness:

Replacement cycle shortens by 30% for tempered steel (HRC30–40) vs. low-carbon steel.
For titanium alloy (TC4), cycle shortens by 50% due to high material viscosity (enhance cooling).

Correlation with Cutting Parameters:

Every 20% increase in cutting speed (VC) reduces tool life by ~50% (e.g., 45# steel turning cycle shortens from 15h to 7–8h when VC increases from 100m/min to 120m/min).

Wear Monitoring Tools:

Use a portable microscope (50–100x) for regular edge inspection: replace immediately when flank wear VB≥0.3mm (for steel) or ≥0.1mm (for aluminum alloy).

Dynamic cycle revision based on actual processing data is recommended via machine tool life management systems (e.g., FANUC tool life counting function) to balance tool durability and production efficiency.

Metal Cutting Blade

挤压分切刀上刀

挤压分切刀下刀

剪切圆刀

锯片刀

Need custom blades? We design and make them

stainless steel coil

aluminum coil

Copper coil

Uncover Your Needs with Us!

圆刀

底刀

锯片刀

压切分切

圆盘剪分切

锯切

Add Your Heading Text Here

I. Key Parameters for Purchase

Material Grade & ISO Class

Tool Geometric Parameters

Dimension Specifications

Coating Types

Performance Indicators

II. Critical Parameters for Operation

Installation Parameters

Processing Parameters

Cooling & Lubrication

Wear Monitoring Standards

Application Suitability

III. Typical Scenario Parameters

IV. Parameter Selection Logic

I. Real-Time Maintenance During Operation

Cooling & Lubrication Control

Dynamic Condition Monitoring

II. In-Depth Maintenance After Use

Cleaning & Debris Removal

Rust Prevention & Coating Care

III. Storage & Transportation Specifications

Storage Environment Requirements

Transportation Protection

IV. Grinding & Repair Essentials

Grinding Timing

Repair Limitations

Metal Processing Special Notes

Impact of Material Hardness:

Correlation with Cutting Parameters:

Wear Monitoring Tools:

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