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Description
VCGT 220530 turning insert – 35° V diamond shape
| Technical data | |
|---|---|
| Edge length l | 22 mm |
| Insert thickness s | 5.56 mm |
| Corner radius rε | 3 mm |
| Inscribed circle diameter IC | 12.7 mm |
LC610T carbide diamond insert – applications and design
single-sided 35° V diamond with positive geometry for nonferrous metals
The VCGT 220530 turning insert is a single-sided, diamond-shaped indexable insert made of LC610T grade cemented carbide, designed for turning aluminum and other nonferrous metals. The V shape, a diamond with an acute 35° included angle, facilitates copy turning and access to narrow, profiled workpiece contours. The positive 7° clearance angle, designated by the letter C, provides positive, single-sided geometry with two cutting edges and low cutting forces. The BAL geometry with a hole, screw countersink and chip breaker controls the flow of long, ductile chips typical of light alloys. The sharp, ground edge reduces friction and prevents built-up edge formation, which impairs the surface finish of aluminum. The insert is replaceable and is not resharpened — once both corners are worn, a new insert is fitted without stopping the machine for tool reconditioning.
Key features of the LC610T cemented carbide insert
- Two cutting edges — two sharp 35° corners on one side of the insert; the positive geometry prevents use of the other side.
- Grade LC610T for nonferrous metals — cemented carbide designed for turning aluminum and light alloys.
- Sharp, positive rake angle — BAL geometry reduces cutting forces and limits built-up edge formation.
- Tolerance class G denotes a ground insert with an inscribed circle IC accuracy of ±0.025 mm — repeatable edge positioning after indexing.
- Dimensions according to ISO 1832: edge length 22 mm, IC 12.7 mm (1/2″), thickness 5.56 mm — compatible with holders with a size 22 V diamond pocket.
- The countersunk hole for the retaining screw and the chip breaker facilitate chip evacuation when machining ductile aluminum.
Applications and cutting data selection for the V diamond insert
The VCGT 220530 insert (also written without a space as vcgt220530) is suitable for turning shafts, bushings, flanges and profiled components made of aluminum, copper alloys and brass alloys. The acute 35° included angle facilitates copy turning and access to gentle contour curves, while the large nose radius rε 3 mm improves surface finish and strengthens the corner at higher feed rates. The positive cutting edge also performs well on slender parts, where low cutting forces reduce material deflection and vibration.
Calculate spindle speed using n = 1000·Vc/(π·D): for a shaft diameter of 40 mm and an example cutting speed of Vc = 500 m/min for aluminum, the result is approximately 3979 rpm. Aluminum is turned at high speeds, so high-pressure coolant is recommended to flush chips from the cutting zone and cool the edge. An excessively low cutting speed promotes built-up edge formation and impairs surface finish, so it is better to target the higher spindle speed range for light alloys. VCGT indexable inserts in this grade are supplied by Austrian manufacturer Boehlerit.
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Application limitation
The sharp edge and positive geometry of the insert VCGT 220530 are optimized for nonferrous metals — do not use it for hardened steel or cast iron, as the thin corner 35° chips easily. For steel and cast iron, select an insert with a stronger corner and negative geometry.
Rhombic insert designation decoder according to ISO 1832
how to read the VCGT 220530 code — designation positions 1–7
Designation VCGT 220530 according to the standard ISO 1832: 4 letters describe geometry and construction, 3 numeric codes describe dimensions. Each field has a number, an icon, and a brief description.
Frequently asked questions about the VCGT 220530 insert
number of edges, materials and holder selection
Two — the V diamond has 2 sharp 35° corners, and the positive, single-sided geometry (7° clearance angle) allows only one side of the insert to be used. Once both corners are worn, the insert is replaced with a new one.
For turning aluminum and nonferrous metals — light alloys, copper and brass. The sharp, ground edge and BAL geometry limit built-up edge formation. This insert is not designed for hardened steel or cast iron.
The letter C in the code indicates a positive clearance angle of 7°. This positive, single-sided insert has a sharp cutting edge and requires lower cutting forces, making it suitable for slender workpieces and ductile aluminum.
Holders and boring bars with a pocket for a diamond insert V (35° diamond) in size 22, with an inscribed circle diameter IC of 12.7 mm. The insert is secured with a screw through the countersunk hole. Select the specific holder designation according to the entering angle and turning direction.
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Shipping
All orders are delivered by courier company GLS. For orders exceeding 369 PLN gross shipping is FREE
| Courier GLS | Przelew24 / Prepayment | 14,76 zł gross | Delivery time 1 working day |
| Courier GLS | Cash on delivery | 17,26 zł gross | Lead time 1 working day |
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