Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 1)
This is Part 1 of a two-part series. Part 2 covers actual cutting-time data comparing circular saws with band saws, the drone-industry machining workflow, research on high-speed sawing of 7075 aerospace aluminum, the scale of automatic circular saws in Japan's aerospace supply chain, and a full breakdown of six cost-benefit categories.
Summary (TL;DR)
- The front-end sawing process in aerospace and drone manufacturing directly affects material utilization, machining time, and downstream CNC efficiency.
- International cases show precision circular saws already being used for aircraft small parts, fuel lines, and turbo blades.
- The harder the material — Chromium, Inconel, Titanium — the more demanding the requirements for machine rigidity and cutting stability.
- Kentai already has an Italian customer using a circular saw to machine Chromium (best real-world results of roughly 5–6 square meters per blade) and Inconel.
- Core takeaway: machine structural rigidity is the non-negotiable foundation of high-difficulty metal cutting.
1. Why Do Aerospace Parts Require Precision Sawing?
Structural components for aircraft and drones frequently use aluminum alloys, titanium alloys, and other high-strength metals.
For example, high-strength aluminum alloys such as 7075 are common in aerospace. Research confirms that tungsten-carbide circular saw blades can be applied to high-speed sawing of 7075 aerospace aluminum, with studies analyzing cutting forces, vibration, surface quality, and tool wear. （Source: ScienceDirect）
This means sawing aerospace materials is not generic rough machining — it requires simultaneous consideration of:
- Cutting speed
- Cutting precision
- Material loss
- Burr formation
- Tool life
- Cutting stability
- Downstream machining requirements
Before material even enters CNC machining, tighter control over front-end saw-cut dimensions reduces the amount of material that later needs to be removed.
Good sawing isn't just cutting material apart — it's saving money for every process that follows.
2. A Real Aerospace Case: How Circular Saws Are Directly Applied to Aircraft Parts
In European aerospace manufacturing, precision circular saws are already directly applied to the front-end machining of aircraft parts.
More notably, these aerospace parts don't just require ordinary steel-cutting equipment — they call for high-precision machining of aluminum alloys and other non-ferrous metals commonly used in aerospace.
In one Rohbimax aerospace application case, Kentai Machinery's KTC NF/F series non-ferrous automatic circular saws are actually deployed for sawing aircraft parts.
Its aerospace applications cover small parts, fuel lines, and turbo blades. This demonstrates that Kentai's non-ferrous circular saws are capable of handling not just general aluminum alloy stock, but also entering actual aerospace manufacturing workflows.
（Source: Rohbimax）
For Kentai, this is a highly significant international reference case — it proves the KTC-NF series was not designed solely for general industrial aluminum, but has already been applied to sawing parts used in aerospace manufacturing.
Aerospace parts carry particularly demanding requirements for dimensional precision, cut quality, burr control, and process stability. Real deployment on fuel lines, turbo blades, and similar aerospace components therefore represents proven validation of the machine's precision non-ferrous sawing and long-duration stability.
This is precisely the advantage of Kentai's KTC-NF series in aerospace and drone applications: not merely "suitable for aerospace materials" in theory, but backed by actual aerospace manufacturing use cases.
3. Why Does Machining Aerospace Materials Place Special Emphasis on "Machine Rigidity"?
If you're only cutting ordinary aluminum stock, machine rigidity may not be the customer's first concern. But once the material becomes:
- Chromium
- Inconel
- Titanium
- Hastelloy
- High-strength aluminum alloys
Everything changes. These materials tend to have higher strength, heat resistance, or wear resistance, requiring greater cutting loads — which also amplifies a chain reaction:
Machine vibration → blade deflection → unstable cutting → degraded surface quality → shortened blade life
For difficult materials, then: the blade itself matters, but whether the machine can stably absorb the cutting load matters just as much.
4. A Real Kentai Case: An Italian Customer Machining Chromium with a Circular Saw
Kentai already has an Italian customer using a circular saw to machine Chromium.
Chromium is a high-hardness, highly corrosion-resistant material. Cutting it demands a high standard of machine rigidity, cutting stability, and blade selection.
In actual use, the customer has been very satisfied with the cutting performance of Kentai's machine.
Even more notably, in the customer's best real-world results:
A single blade cut roughly 5–6 square meters of Chromium material.
(Note: This figure reflects a customer's best-case actual result. Real-world cutting yield will vary depending on material condition, blade specification, and cutting parameters.)
This number reflects more than just blade durability. When a blade must continuously cut a difficult material, insufficient machine rigidity causes vibration and deflection during cutting, which directly affects blade life, cut quality, and process stability.
The ability to sustain long-duration machining of this kind of material — proven through actual customer use — confirms: machine structural rigidity is the non-negotiable foundation of high-difficulty metal cutting.
5. Another Italian Case: Kentai Circular Saws Actually Machining Inconel
Beyond Chromium, Kentai also has an Italian customer using a circular saw to machine Inconel.
Inconel is a classic high-temperature nickel-based superalloy, prized for its excellent heat resistance, corrosion resistance, and high-temperature strength — making it widely used in aerospace, energy, and high-performance industrial applications.
But those same superior material properties also mean high machining difficulty.
Cutting Inconel places heavy load between the tool and workpiece, and cutting heat and tool wear are significant concerns. For a circular saw to be actually deployed in Inconel machining — and to keep operating on the customer's floor — the machine must possess sufficient:
- Structural rigidity
- Spindle stability
- Clamping capability
- Feed control
- Cutting stability
This is another important track record for Kentai circular saws in high-difficulty material machining.
6. From Chromium and Inconel to Aerospace Aluminum Alloys: The Harder the Material, the More the Machine Matters
Putting these cases together reveals a clear pattern:
- Material Type Machining Priority
- General aluminum stock High speed × high throughput × low material loss
- Aerospace aluminum alloys Precision × surface quality × burr control × blade life
- Chromium / Inconel / Titanium High rigidity × high stability × tool life × sustained machining capability
So the value of a high-end circular saw isn't simply "cutting faster." What truly matters is:
The ability to cut stably and precisely under high-load cutting conditions — and to maintain consistent quality over long periods of continuous operation.
Part 1 Summary
This article covered the technical challenges of sawing aerospace materials, real-world international cases of circular saws in aerospace applications, and Kentai's actual track record machining Chromium and Inconel for Italian customers. The core conclusion: machine rigidity determines whether difficult materials can be cut stably over long production runs.
Part 2 will cover: real cutting-time data comparing circular saws to band saws, how material utilization in aerospace directly translates into cost savings, the drone-industry sawing workflow, research on high-speed sawing of 7075 aluminum, and a complete six-category cost-benefit analysis with conclusion.
Further reading: Do Aerospace and Drone Components Really Need Circular Saws? From Aluminum Alloy to Chromium and Inconel — How High-Rigidity Circular Saws Cut Machining Costs (Part 2)
Frequently Asked Questions (FAQ)
Q1: What kinds of aerospace parts are circular saws mainly used to machine?
A: International cases show precision circular saws applied to front-end cutting of aircraft small parts, fuel lines, and turbo blades.
Q2: Why does machining Chromium and Inconel require an especially high-rigidity machine?
A: These materials are high-strength, heat-resistant, and wear-resistant, creating heavy cutting loads. Insufficient machine rigidity causes vibration and blade deflection, degrading surface quality and blade life.
Q3: What real-world cases does Kentai have in high-difficulty material machining?
A: Kentai has Italian customers actually using circular saws to machine Chromium (best real-world results around 5–6 square meters per blade) and Inconel.
Q4: What is the KTC-NF circular saw?
A: KTC-NF is Kentai's high-speed, automatic circular saw series developed for aluminum alloys and other non-ferrous metals.