Secondary CNC Machining
Comprehensive die cast secondary operations to achieve tight tolerances and specific surface finishes. Honjenny utilizes advanced in-house machining centers to complete your metal components to exact drawing specifications.Contact Now！
Precision Machining Capabilities
CNC Milling Services (3-5 Axis)
CNC Turning Services
Wire EDM Services
Sinker EDM Services
Submit Drawings for Machining Evaluation
Engineering Tolerances & Quality Control
Hard specifications governing our in-house machining and precision die casting post-processing standards.
Dimensional Accuracy
Milling holds linear tolerances to ±0.01mm. CNC turning maintains 0.005mm concentricity. Wire EDM achieves precision cuts at ±0.005mm.
Surface Finishes (Ra)
Sinker EDM produces Ra 0.1μm optical surfaces. Turning operations achieve Ra 0.4μm finishes directly from the lathe.
Inspection Protocols
Strict CMM (Coordinate Measuring Machine) verification for true position, flatness, and structural integrity on all machined features.
Industries We Serve
From rugged automotive components to delicate electronic enclosures, our secondary machining meets the diverse needs of global industries.
Integrated In-House Machining
Operating both casting presses and CNC centers under one roof eliminates transit risks and vendor miscommunication. This single-source responsibility ensures consistent precision die casting performance and traceable quality control from molten metal to the final machined component.
Engineering Validation
Real-world feedback from engineering teams regarding our execution of tight-tolerance machining and secondary operations.
“Their in-house CNC turning achieved the strict 0.005mm concentricity required for our cast bearing housings. This integrated process eliminated the tolerance stack-up issues we previously had with outsourced machining.”
“We needed an optical-grade cavity on a complex cast bracket. Their sinker EDM hit the Ra 0.1μm spec directly without manual polishing, ensuring precise geometric accuracy and saving weeks.”
“Their multi-axis CNC milling held a ±0.01mm tolerance on our critical O-ring grooves immediately after casting. The included CMM reports provided 100% confidence in the final sealing surfaces.”
Project Initiation Requirements
To ensure precise execution of secondary operations, please provide the following technical documentation and specifications.
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Frequently asked questions
While die casting is excellent for complex shapes, die cast secondary operations are required to achieve extreme tolerances (e.g., ±0.01mm), tap internal threads, or remove draft angles on critical mating surfaces.
We execute in-house machining for both. While we specialize in post-casting machining, we frequently process solid billets (stainless steel, titanium, aluminum) for specific project requirements.
We utilize precision CNC tapping centers and verify 100% of internal threads using calibrated go/no-go gauges as a mandatory step in our quality control protocol.
Sinker EDM allows us to machine intricate cavities and sharp internal corners while achieving a Ra 0.1μm optical-grade finish, completely bypassing manual polishing variables.
