Background and core objectives of the issue

The balance distribution determines whether thermal process deformations can be eliminated by final processing.

The most important control for this project is that material status, timeliness, heat-processing deformation and final hardness must be locked in the route. The purchaser should place the failure of functionality, assembly relationships and consistency of duplicate orders before the unit price comparison and confirm at the quotation stage whether the supplier can provide DFM, process records and traceable detection data.

Chart requirements and functional features

The drawings indicate UNS S17400, delivery status, hardness range, post-heat treatment size, and no decarbonization or contaminated area.

Key sizes should indicate which state of acceptance is after processing, heat treatment or surface treatment; if there are many understandings, a written list of questions should be formed and confirmed prior to preparation and programming.

Processing routes and process control

Solid solute coarse and leave a flat balance, measure deformation after a period of time, and refine critical co-processing and seal surfaces with rigid knives.

The first of the NCC material processing projects corresponding to the 17-4PH stainless steel before and after the expiration date will need to represent the true batch conditions.

Common risks and preventive measures

The residual amount is too small to correct the deformation, while oversized increases wear and tear in a high hard state; mixing of stoves also results in differences in hardness and contraction.

In response to the risk of “how to process residuals before and after the time limit of 17-4PH stainless steel”, the precautionary measures should identify those responsible, check nodes and unusual reactions.

Method of detection and basis for acceptance

Cross-checking of batch and heat-processing curves, hardness, size and position, increased permeability detection of critical elements and material markings retroactively.

The electronic report recommends that parts numbers, drawing versions, batches of materials, equipment numbers, inspection dates, actual results and determinations be retained to facilitate customer review and subsequent batch comparisons.

Recommendation for implementation of request for quotations and volume

Inquiries are provided for heat-processing states, hardness, critical residuals, material certificates, special process approvals and batches.

Once a duplicate of 17-4PH stainless steel is produced, the approved sample, the controlled procedure, the state of the packaging, the life of the knife, the batch, the first item and the unusual record are kept. Each duplicate order rechecks the drawing version, quantity, period and processing requirements to ensure that the historical process can continue under current conditions.

Project evaluation: Please send 2D drawings, 3D documents, materials, quantities, key public transport, surface treatment and application requirements to chenyongxing@xc-cncprecision.com, for which we can provide the DFM evaluation.