Overview

A custom titanium scalpel blade is a precision cutting blade — edge, tip and mounting tang — etched from thin titanium sheet for surgical and laboratory dissection. A dry-film resist is imaged with the blade and edge-zone geometry, developed, and the exposed metal is dissolved in matched chemistry, leaving a continuous edge with no burr and no heat-affected zone. Stock is typically commercially pure titanium Gr1/Gr2, valued for corrosion resistance, low weight and non-magnetic behavior, between 0.05 mm and 0.5 mm. Because whole-sheet chemical removal does not alter the microstructure, a custom titanium scalpel blade keeps its edge geometry and thickness consistent from sample to volume, without the rolled edge that blanking leaves.

For instrument engineers, the custom titanium scalpel blade resolves the hardest trade-offs of miniature cutters: ground edges a few tens of microns thick develop micro-cracks, the tip must be symmetrical left to right, and a stamping burr tears tissue during a cut. Etching forms the profile, edge zone and mounting holes together, so changing edge angle or blade length is a new film rather than a grinding fixture, which makes multi-spec prototypes economical. Dissection blades, microsurgical knives, biopsy sampling edges and laboratory sectioning blades all rely on sharp, clean, consistent etched titanium edges.

Parameter Window

• Available Materials: commercially pure titanium Gr1/Gr2, plus Ti-6Al-4V and 316L stainless as alternatives
• Material Thickness Range: 0.05–0.5 mm (0.1 mm and 0.2 mm for single-use blades)
• Tolerance: ±0.02 mm on edge profile, ±0.03 mm on tip position, ±0.05 mm on outline
• Minimum Feature: edge thickness down to 30% of stock, 15°–30° edge angle, 0.05 mm tip radius
• Surface Options: bare passivated, electropolished, anodized color coding, clean-room wash
• Compliance: ISO 9001 process control, RoHS/REACH material traceability

Manufacturing Process / Workflow (8 Steps)

1. Artwork Review — Vectorize blade and edge-zone files, check edge angle, tip and thickness relationships, and mark the edge datum.
2. Material Selection — Confirm CP titanium grade and temper, and reject sheet with scratches or inclusions that would break the edge.
3. Cleaning & Lamination — Degrease and laminate dry film on both faces so the edge zone is fully masked and stays continuous.
4. UV Exposure — Expose through high-resolution film registered to the sheet edge so left and right edge angles stay symmetrical.
5. Development — Open the edge zone and outline, then inspect the edge line under a microscope for complete development.
6. Etching — Spray titanium-matched chemistry with tightly controlled time and temperature to form a continuous, sharp edge.
7. Stripping & Finishing — Remove resist, neutralize, electropolish or passivate, clean-rinse to remove residue, and flatten if needed.
8. Inspection & Packaging — Measure edge profile, thickness and symmetry, then single-pack in a clean environment with a measured report.

Core Advantages

1. Continuous sharp edge: Chemical forming yields a thin, uninterrupted edge without grinding micro-cracks, so cutting drag stays low.
2. Burr-free, no tearing: Etching leaves no stamped roll-over or burr, so the blade cuts cleanly without snagging tissue.
3. No grinding fixture: A new edge angle or blade length is a new film, so multi-spec small runs carry no grinding-tool cost.
4. Corrosion-resistant and light: CP titanium resists chloride and repeated sterilization, is light and non-magnetic, suiting micro and non-magnetic work.
5. Batch consistency: Blades on one sheet form together, so edge geometry matches within a lot.
6. Clean and traceable: A custom titanium scalpel blade pairs pure-titanium material behavior with fine, burr-free etched edges and clean washing for instrument traceability.

Typical Applications

• Dissection and surgical blades: Single-use blades for surgical and teaching dissection with sharp, consistent geometry.
• Microsurgical knives: Miniature cutters for ophthalmic and micro work that are light and non-magnetic for fine control.
• Biopsy sampling edges: Cutting edges on soft-tissue sampling tools whose thin edge reduces crush damage.
• Laboratory sectioning blades: Thin blades for pathology and material sample prep with a continuous edge for flat cuts.
• Implant-support tools: Single-use cutting and scraping tools matched to titanium implants with good material compatibility.
• Micro-dissection needle knives: Needle-tip cutters for micro-area separation that are small and symmetrical.

Design Notes & Process Considerations

1. Edge angle and thickness: A smaller angle gives a thinner edge; specify it together with stock thickness and strength, since too thin an edge rolls.
2. Etch factor: Double-sided etching tapers the edge zone, so call out finished edge thickness and allow an etch-factor compensation.
3. Edge symmetry: Dimension left/right angle symmetry and its measurement datum to prevent a biased edge from steering the cut.
4. Surface cleanliness: Specify electropolish and cleaning requirements, because residue or particles affect instrument cleanliness.
5. Packaging and protection: Single-pack blades in clean conditions and state edge protection so tips are not chipped in transit.
6. Sampling and lock: Approve a sample for edge thickness, symmetry and cutting feel, then lock the etch parameters for a custom titanium scalpel blade.