Test Brief Introduction

Get to know more about the relationship between HSS saw blade PVD coating and cutting performance. HSS SHARK highly improves cutting performance.

Conditions

● Testing date: July 22, 2019 ~ July 23, 2019
● Blade specification: 325×2.5x32mm 240T
● Cutting material: stainless steel 436
● Machine: hydraulic vertical pipe-cutting machine

Objective

How HSS saw blade PVD coating get closely involved with cutting performance?

Test Blade Specifications

Size details

325×2.5x32mm
Customer finished sharpening at site before testing.

Teeth details

240T

PVD coating

HSS SHARK series (previous is TiAlN coating)

Teeth grinding details
refer as “A”

Customer standard grinding angle is 13/18, R0.28; sharpening speed is
2.0 or 2.5. Testing sharpening speed is 2.0

Cutting Material Specifications

Pipe material

Stainless steel 436

Pipe size details

Diameter 65mm, wall thickness 1.2mm

Machine Specifications

Machine

Hydraulic vertical pipe-cutting machine

Brand

LONGXIN 355

Test Number

Test Line 1

Cutting Time

9s per cut

Cutting Data

Feedback on site

Skilled worker on site informed it could generally finish 700~800 cuts,
reached 1400 cuts with perfect grinded teeth.

Replace

Replace a new or do sharpening when burrs happened in the wall of the
pipe, or a squeeze in the mouth of the pipe

Sharpening time

Service time

Sharpening data

1st sharpening

700 cuts (TiAlN coating)

A

2nd sharpening

1300 cuts (HSS SHARK)

A

3rd sharpening

awaiting

Summary

After treated with a new HSS SHARK coating for a used HSS blade (TiAlN coating), and finished the same sharpening, which can highly improve its service time.