Get the Right Groove – Boost Tool Life by 33% with Zero Machine Surveillance in ID Turning
A leading Vietnamese manufacturer specializing in Swiss-type machining was challenged by the high-volume production of demanding hydraulic components made from SUS316F stainless steel (see image below). The most critical operations were two internal grooves in a small bore, where tight tolerances, difficult chip control, and the material's demanding machining characteristics pushed both tool performance and process stability to their limits.
Despite relying on a premium grooving tool from a renowned global tooling manufacturer, the company continued to face persistent production issues. What seemed like a cost-effective tooling choice ultimately generated considerable challenges in maintaining process stability, part quality, and operational efficiency.
Customer Pain Points
The main challenges extended beyond the demanding machining operation itself. The manufacturer repeatedly struggled to achieve the required surface finish of Ra 0.8, while dimensional stability deteriorated over the tool life. As a result, Cp and Cpk values fluctuated significantly, making it difficult to maintain a consistently capable process. These issues not only increased scrap rates and process variability but also negatively impacted product quality, production efficiency, and overall manufacturing costs. Achieving reliable, repeatable performance therefore became a key priority for ensuring both customer satisfaction and long-term competitiveness. To remain competitive and ensure reliable production, the company needed a machining solution capable of delivering consistent quality, extended tool life, and maximum process security.
The Hidden Costs of Poor Process Stability
- The process demanded constant operator supervision, eliminating the possibility of unattended machining.
- Frequent tool offset adjustments were required during the insert life cycle to maintain groove dimensions and surface finish within specification.
- Continuous manual intervention became the norm, with operators repeatedly correcting deviations during production.
- Cp and Cpk values fluctuated significantly as tool wear progressed, exposing a lack of process stability and control.
- High operator dependency reduced productivity and introduced increased risk of quality variation and process inconsistency.
The Game-Changing Solution
The client worked closely with the HUTSCOM team, IFANGER’s trusted sales partner in Vietnam, to identify and address the root causes of the machining challenges. Leveraging its extensive expertise in Swiss-type machining, the HUTSCOM team implemented a successful solution that combined a high-performance grooving tool featuring an ultra-thin coating with a vibration-damping toolholder from the IFANGER Swiss MicroTurn range (see image below).
The result was a true game changer, delivering outstanding process stability, superior part quality, and performance that exceeded the customer’s expectations. An additional productivity boost was achieved through the integrated QuickChange system, which enables tool changes in just a matter of seconds. Thanks to the exceptional precision of both the toolholder and the tooling interface, no remeasurement or correction of the tool offset is required after a tool change. This significantly reduces machine downtime, eliminates setup-related errors, and further enhances overall process efficiency and productivity.
Quality Improvements
- The groove surface finish consistently met the drawing requirement (Ra 0.8).
- Groove dimensions remained stable throughout the entire insert life.
- Process capability indices (Cp and Cpk) became stable and repeatable.
- Improved consistency significantly reduced dimensional variation and quality concerns.
Productivity Improvements
- No tool offset adjustments were required throughout the entire insert life cycle.
- Operators only needed a single setup and were able to run production continuously until the insert reached end of life.
- Reduced operator intervention led to higher production efficiency and improved process reliability.
Technical Setup and Cutting Conditions
| Machine | Tsugami BO205-II Swiss-type lathe |
| Workpiece Material | SUS316F Stainless Steel |
| Spindle speed | 4,000 RPM |
| Feed rate (F) | 0.005 mm/rev |
| Depth of cut (X1) | 0.275 mm |
| Depth of cut (Z1) | 0.05 mm |
The MTNN 42006-R-TiAlN grooving tool (0.60 mm width) is fed radially along the X1 axis to a diameter of 2.70 mm, corresponding to a depth of cut of 0.275 mm. The tool is then moved laterally by 0.05 mm along the Z1 axis to produce the final groove width of 0.65 mm.
33% More Tool Life, Greater Productivity, Lower Cost
The results were outstanding: compared to the previous premium tooling solution from a leading supplier, the IFANGER system increased tool life by 33%, from 12,000 to 16,000 machined grooves. Beyond the substantial productivity gains, the customer benefited from higher process capability, improved part quality, greater manufacturing consistency, and lower production costs. The combination of extended tool life, enhanced process stability, and reduced downtime resulted in a more efficient and cost-effective manufacturing process.
Before versus after comparison
| Criteria | Before (Previous Grooving Tool Solution) | After (Swiss-MicroTurn Solution) |
| Surface Finish | Difficulty maintaining Ra 0.8 consistently | Ra 0.8 requirement consistently achieved |
| Dimensional Stability | Unstable groove dimensions | Stable groove dimensions |
| Process Capability (Cp/Cpk) | Significant fluctuations and limited process control | Stable Cp/Cpk values with full process control |
| Tool Offset Adjustments | Frequent offset corrections required | No offset adjustments required |
| Operator Supervision | Continuous monitoring and intervention necessary | Minimal operator intervention required |
| Process Stability | High variability and process inconsistency | Excellent process stability and reliability |
| Productivity | Reduced by manual corrections and downtime | Increased productivity through uninterrupted production |
| Tool Change Process | Time-consuming with remeasurement and offset correction | QuickChange system allows fast tool changes without remeasurement. |
| Tool Life | 12,000 machined grooves
| 16,000 machined grooves (+33%) |
| Production Costs | Higher due to instability, downtime, and operator involvement
| Lower total cost of ownership through improved efficiency and reliability
|
When Outstanding Performance Creates Customer Loyalty
Following a successful trial on one machine and an evaluation of process repeatability, the *customer confirmed that the IFANGER solution delivered excellent results and consistency.
- The IFANGER solution was expanded from the initial test machine to a total of four production machines.
- The customer expressed a high level of satisfaction with the machining performance, part quality, and outstanding process stability achieved.
- Although the IFANGER tooling solution carries a substantially higher purchase price than the previously used grooving system, the customer concluded that the significant improvements in quality, process stability, reduced operator intervention, and extended tool life more than justify the investment. These benefits translate into a significantly lower total cost of ownership and a highly attractive return on investment.
*Due to confidentiality requirements, the customer has requested that its company name remain undisclosed in all public reference, marketing, and promotional materials.
HUTSCOM – More Than a Distributor, a Trusted Technology Partner
HUTSCOM has established itself as one of Vietnam’s most respected partners for precision machining solutions. Since its foundation, the company has built a strong reputation by combining high-quality tooling from leading international manufacturers with exceptional application support and deep technical expertise in metal cutting and precision engineering.
What truly sets HUTSCOM apart is its commitment to customer success. Rather than simply supplying tools, the HUTSCOM team works closely with customers on the shop floor, helping them optimise processes, solve complex machining challenges, and improve productivity, quality, and profitability. Their experienced engineers bring valuable application know-how and a hands-on approach that customers greatly appreciate.
For IFANGER, HUTSCOM has proven to be a highly competent and reliable partner in Vietnam. Their professionalism, technical expertise, and dedication to finding the best solution for the customer have been instrumental in transforming challenging applications into successful production stories. HUTSCOM is not only a distributor but a trusted partner that creates lasting value for customers and suppliers alike.