Custom machining for integrated blade-and-disk parts
A blisk combines blades and a disk in one component. Jucheng provides part machining for custom blisk projects. The quotation starts with your controlled drawing and CAD model, rather than a general promise about engine efficiency, weight reduction or flight approval.
What we need to review before quoting
- Rotor geometry: outer diameter, overall height, blade count, blade spacing and the smallest passage that a cutter must enter.
- Blade details: curvature, twist, minimum thickness, root transitions and any restricted surfaces where tool marks or edge changes are unacceptable.
- Material: exact alloy, supplied stock or forging, heat-treatment condition and required material records.
- Drawing controls: blade profile, bore, mounting face, datum system, runout, surface texture and deburring requirements.
Blade passages and root geometry affect tool access and stiffness. A narrow gap can restrict cutter diameter; a deep passage can require greater tool reach. These details deserve a feature-by-feature review before committing to a tolerance or finishing route.
How the machining scope is agreed
The review separates stock preparation, disk and bore features, blade roughing, finishing and edge treatment. Multi-axis tool orientation can help reach curved blade surfaces, but the necessary setups depend on access, workholding and the relationship between features. A second operation may still be needed for the opposite face or attachment details.
Specify whether you are supplying a near-net blank or requesting material procurement. Also identify when heat treatment must occur and which dimensions must be accepted after final processing. Changes to the blade model, material condition or inspection plan can change the quotation.
Agree on acceptance for the actual rotor
List the characteristics that need inspection: for example, bore size, mounting-face runout, blade profile and designated surface texture. Agree on the measurement method, sampling and required report for each characteristic. A generic statement that a part is checked on a CMM does not establish that every blade surface is accessible or that every drawing requirement has been verified.
Balancing, nondestructive testing, traceability and customer-specific approval requirements must be stated in the RFQ and confirmed in the quotation. They are not automatically included with a machined rotor. Inspection records alone do not authorize an aerospace component for service.
Send a complete blisk RFQ
Provide the current drawing revision, CAD model, quantity, material condition, critical features, finishing requirements and delivery destination. Add your inspection and documentation requirements, including any balancing or NDT scope. We review the machining request and confirm the agreed scope, price and lead time for that project.
