For nail clipper blades, levers, pins and complex small structures, the hardness, toughness, corrosion resistance, size and polishing requirements are matched according to different part functions.
This page is a typical project plan and does not correspond to a specific customer name or unconfirmed delivery results.
Divide similar projects into four executable links
Demonstrates how cutting edge hardness, structural strength, corrosion resistance, size and surface quality are considered individually for the various components of a nail clipper.
Project goal: Multiple components form a material solution
The cutting edge focuses on hardness and wear resistance, the lever focuses on strength and toughness, and the pin and mating surface focus on size and surface; it is not necessary to force the use of one grade for the same product to solve all problems.
Common difficulties: small size, complex structure and surface defects
Thin walls, hole locations, curved surfaces and thickness changes can increase the risk of incomplete filling, flash, sintering distortion and pores exposed by polishing.
Tongcheng approach: compare 440C and 17-4PH by part function
The cutting edge can be evaluated as 440C first, and the high-strength structure can be compared to 17-4PH; the material combination is then determined based on particle size, heat treatment, grinding and polishing, and actual corrosion resistance requirements.
Verification focus: simultaneous evaluation of hardness, closing feel and appearance
It is recommended to check critical fit, edge condition, heat treatment deformation, polished surface, corrosion resistance and post-assembly shear behavior on the actual part.
The engineering team can further evaluate based on actual grade, particle size, process, target results and procurement plan.
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Technical references for this page
These references explain materials, processes or test methods. Third-party product data does not represent Tongcheng product specifications.