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Turn-Milled Aluminum Tank Components

Custom 7075 aluminum tank assembly components produced by turn-mill machining, with stepped circular interfaces, multiple mounting-hole groups and a sealing groove. The specified finish combines sandblasting and black hard anodizing.

Category:

Turn-Mill Composite Machining

key word:

Turn-Mill Machining

7075 Aluminum

Tank Components

jake@gdfengnuo.com

Message

Product Description

Product Information

Manufacturing Process	Turn-mill machining
Part Type	Tank assembly components
Material	7075 aluminum alloy
Post-Processing	Sandblasting and black hard anodizing
Structural Features	Stepped circular bodies, bores and recesses, multiple mounting-hole groups, and a sealing groove
Application Field	Tank assemblies

Product Overview

These 7075 aluminum tank components combine turned circular interfaces with milled holes, recesses and sealing features. The photographs show two black-finished pieces from several angles, including their stepped faces, central openings and peripheral mounting features.

Structure and Machining Features

The components have several assembly reference surfaces and more than one hole pattern. Their stepped bores and recesses form mating or locating interfaces. An annular groove is visible on one piece; its finished dimensions matter where a seal is fitted. The sandblasted, black hard-anodized finish must remain consistent without damaging functional edges or interfaces.

Machining Challenges and Control Strategy

Multiple hole groups must be positioned relative to the specified assembly datums. A practical control plan establishes stable turned references, transfers them consistently into the milling operations and checks each completed hole pattern against the drawing datums. Limiting reference changes between setups helps control accumulated position error.

Clamping can distort the circular or relieved sections. Support and clamping pressure should suit the geometry, and critical dimensions should be checked after the parts are released. The sealing groove requires controlled width, depth and continuity. Its final dimensions should be inspected after the specified surface treatment because changes at the groove or mating face can affect the subsequent seal fit.

Quality Control Focus

Position of each hole group relative to its specified assembly datums
Alignment of stepped bores, recesses and mating faces
Distortion, flatness or roundness change after unclamping
Finished sealing-groove width, depth, continuity and edge condition
Uniform black finish without damage to functional interfaces

Project Value

Controlling the hole patterns, datum transfer and sealing groove gives the tank assembly a more repeatable fit and a defined sealing interface. These checks reduce avoidable fitting adjustments and give engineering and sourcing teams clear criteria for first-article approval and repeat production.

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