Overview

This document provides detailed technical specifications, application guidelines, and performance data for CHAIN HEADIWAY negative angle inserts and milling cutters. It focuses on cost-effective machining solutions using negative rake angle inserts designed to reduce burr size, improve surface finish, and enhance tool life.

1. Product Features and Design

• Negative Rake Angle Inserts: Designed to reduce cutting edge roughness and minimize workpiece burrs, leading to effective cost savings.
• Wipe Inserts: Special design to decrease surface roughness.
• Chamfered Cutting Edges: Help reduce burr formation on workpieces.
• Non-Equidistant Tooth Design: Reduces vibration and improves machining stability, especially at high feed rates.

2. Application and Machining Types

The inserts and cutters are suitable for various machining types and materials:

• Machining Types: Roughing, semi-finishing, face milling, shoulder milling, and high-feed milling.
• Materials: Alloyed steels, stainless steels, cast iron, aluminum and aluminum alloys, refractory alloys, and hard materials.

3. Cutting Parameters

Recommended cutting parameters vary by insert type and material:

• LN_03 Inserts: For alloyed steels and cast iron, cutting speeds (Vc) range from 80 to 250 m/min with feed per tooth (fz) between 0.5 to 1.2 mm/rev.
• HN_06 Inserts: For alloyed steels, stainless steels, cast iron, and aluminum, cutting speeds range from 120 to 400 m/min with feed per tooth from 0.08 to 0.25 mm/rev.
• SN_12 Inserts: For alloyed steels and cast iron, cutting speeds range from 130 to 320 m/min with feed per tooth from 0.10 to 0.35 mm/rev.

4. Milling Cutters

Several shell milling cutters with negative rake angle inserts are detailed:

• NAC 45° Negative Angle Shell Milling Cutters: Available in various diameters (50 mm to 160 mm) with 4 to 12 flutes, using HN..0604 or SN..1206 inserts. Designed for large area cutting and cost efficiency.
• NAC 88° Negative Angle Shell Milling Cutters: Similar insert types with different geometries for specific applications.
• NHF High Feed Milling End Mills and Face Mills: Designed for high feed rates with specifications on diameter, flute count, and insert types (LN03, LNMU0303).

5. Accessories and Assembly

• Screws and wrenches with specified torque values are provided for secure assembly of inserts and cutters.

6. Performance and Efficiency

• Through coolant design enhances chip removal and reduces cutting temperature.
• Machining tests on cast iron show a 40% increase in tool life and over 140% improvement in machining efficiency compared to other brands.
• Dry cutting is supported for certain applications.

7. Manufacturer Information

CHAIN HEADWAY CO., LTD.
No. 232, Wuquan Rd., Qingshui Dist., Taichung City 436037, Taiwan
Tel: +886-4-26265252
Fax: +886-4-26267941
Website: www.chain-headway.com