Overview

This technical document from Vischer & Bolli AG and GmbH serves as a comprehensive catalog and reference guide for indexable inserts and boring bars used in various machining operations including milling, turning, drilling, boring, deburring, core drilling, and countersinking. It provides detailed product specifications, commercial conditions, machining parameters, ISO coding, and recommendations for optimal tool selection and application across a wide range of materials.

1. Product Types and Applications

• Indexable Inserts: Offered in carbide, cermet, and ceramic materials with various grades and coatings tailored for different machining tasks.
• Machining Operations: Includes milling, turning, drilling, boring, deburring, core drilling, countersinking, chamfering, and copy milling.
• Boring Bars: Carbide-shank bars with internal coolant supply to enhance rigidity and surface finish.

2. Commercial Conditions

• Discounts: Basic discount per agreement; additional quantity discounts for ISO inserts range from 5% (20-49 units) up to 20% (500+ units).
• Minimum Order: 10 units per box.
• Pricing: Prices exclude VAT and packaging; delivery free to Dübendorf.
• Payment Terms: Net 30 days from invoice date.
• Price List Validity: Supersedes all previous versions and subject to change without notice.

3. Insert Types, Fixation, and Orientation

• Positive Inserts: Screw-fixed, compatible with ISO tool holders starting with 'S'.
• Negative Inserts: Lever clamp-fixed, compatible with ISO tool holders starting with 'P'.
• Orientation: "L" inserts fit "R" bars and vice versa to ensure correct assembly.

4. Materials, Grades, and Chip-Breakers

• Grades include CP230, CM340, CH1, PMK32, DX6, KM22, CT10, CT50, PMK5015, and others, each optimized for specific materials such as steel, stainless steel, nickel/cobalt alloys, cast iron, aluminum, and titanium.
• Chip-breakers (e.g., N40, N50, N55, N56, N58) are designed to improve chip control, surface finish, and machining efficiency, with specific types recommended per material and tensile strength.

5. Machining Parameters

• Depth of Cut (ap): Ranges from 0.02 mm to 2.5 mm depending on insert type, grade, and operation.
• Feed per Tooth (fz) and Feed per Revolution (f): Provided as recommended ranges for finishing, medium, and roughing operations.
• Cutting Speeds (Vc): Specified in m/min, varying by material hardness and insert grade (e.g., up to 360 m/min for unalloyed steel, 500 m/min for aluminum).
• Recommendations: Parameters are indicative and should be adjusted based on tool stability, workpiece rigidity, clamping, and surface finish requirements.

6. ISO Coding and Insert Identification

• ISO codes specify insert shape, size, corner radius, chip-breaker type, grade, and cutting edge geometry.
• Chamfer and clearance angles are identified by letters; tolerances vary by insert size and class.
• Insert codes such as CCGT, CCMT, CNMG, MBHT, MPHT, RMM, SDHT, and others are cross-referenced with chip-breakers and grades.

7. Material Suitability and Application Recommendations

• Inserts and grades are matched to materials including unalloyed and alloyed steels, stainless steels (ferritic, martensitic, austenitic), nickel and cobalt alloys, cast iron (grey, malleable, nodular), aluminum alloys, titanium alloys, and copper/brass/bronze.
• Chip-breakers and grades are selected based on tensile strength and hardness ranges to optimize tool life and surface finish.
• Specialized inserts such as diamond-coated types are recommended for graphite and copper machining.

8. Performance and Quality Codes

• Quality codes indicate first choice (§) and second choice (°) inserts to guide optimal selection balancing productivity and tool life.
• Chip-breaker geometry and cutting edge design influence chip control, surface finish, and machining safety.

9. Common Machining Issues and Remedies

• Wear types such as flank wear, notch wear, chipping, built-up edge, and thermal cracks are described with corrective actions including adjusting cutting speeds, feeds, insert geometry, and coolant use.
• Coolant use is generally avoided in milling but recommended abundantly for aluminum, titanium, copper, and high-strength materials.

10. Tabulated Data and Pricing

• Extensive tables provide insert references, chip-breaker numbers, grades, recommended cutting parameters, and pricing in CHF and Euro.
• Data supports selection of inserts tailored to specific machining operations and materials.

11. Contact Information

• Vischer & Bolli AG (Switzerland) and Vischer & Bolli GmbH (Germany) provide phone, fax, email, and website contacts for orders and technical support.

Critical Information Summary

• Minimum order quantity is 10 units per box.
• Quantity discounts increase with order size, up to 20% for 500+ units.
• Machining parameters must be selected according to insert grade, chip-breaker, and workpiece material for optimal results.
• Positive and negative inserts require compatible tool holders with specific ISO codes.
• Chip-breakers significantly influence chip control, surface finish, and machining efficiency.
• Prices exclude VAT and packaging; payment is due within 30 days of invoice.
• Insert orientation ("L" vs. "R") is essential for correct assembly and performance.
• Cutting data are indicative and should be adapted to actual machining conditions.

This document is a multilingual, detailed technical and commercial reference designed to assist users in selecting and applying indexable inserts and boring bars for precision machining across a broad spectrum of materials and operations.