DFM, tolerances and quality
What inspection equipment do you use?
Answer
Being precise about the boundary is more useful to a buyer than a longer equipment list: No coordinate measuring machine (CMM). For complex free-form geometry we use the 3D scanner, and for parts that need a formal CMM report we arrange measurement with a partner laboratory and say so before quoting. No in-house metallurgical laboratory. full material certification comes from the mill, and heat treatment is carried out by qualified partner plants.
Sources
- Inspection Lab | First Article Inspection & PPAPBeing precise about the boundary is more useful to a buyer than a longer equipment list: No coordinate measuring machine (CMM). For complex free-form geometry we use the 3D scanner, and for parts that need a formal CMM report we arrange measurement with a partner laboratory and say so before quoting...
- Custom Sheet Metal Bending Services | BalfordInspection uses digital height gauges, micrometers, radius gauges and vision measurement, alongside the optical measuring projector and hardness and salt-spray equipment used for qualification work. PPAP Level 3 documentation is available for new programmes. Sheet metal bending FAQ What sheet metal ...
- Choosing a Metal Stamping Manufacturer or Supplier in ChinaInspection. What measuring equipment exists (CMM, micrometers, height gauges, surface testers)? Ask for calibration certificates of the instruments you see. Check whether first-article inspection records are actually kept. In-process control. Are operators doing checks during the run? Is there a con...
- Balford Quality | ISO 9001 and IATF-Aligned ControlsElement What Balford states Quality management system ISO 9001:2015 Automotive quality Process controls aligned to IATF 16949 requirements - not an IATF 16949 certificate New part release First article inspection (FAI) against the confirmed drawing Production part approval PPAP-aligned documentation...
- PPAP-Ready Stamping & Deep Drawing Supplier | BalfordPackage and PSW: the complete submission is reviewed internally, then issued with the signed Part Submission Warrant. Controls that continue after approval First article inspection (FAI) at every new tool, transfer or major process change In-process checks at defined frequencies with calibrated plug...
- Verified company facts and boundariesoutsourced_processes: ["bulk heat treatment (die + production parts)","slow-wire EDM","passivation","electropolishing","plating","phosphating","liquid painting","electrophoretic coating / e-coating (电泳)","hot forging 红冲 (machining pre-forms)","cold extrusion 冷挤压 (machining pre-forms)","cold heading ...
What an engineer still needs from you
- material and material condition (grade, temper)
- material thickness, plus the key diameter, height and wall thickness
- tolerances, burr direction and the visual acceptance standard
- annual volume - it decides whether tooling is single-hit, progressive or transfer
- surface finish, and any secondary machining, annealing or plating
Need a DFM feasibility assessment for your project?
Send the engineering drawing (STEP or PDF) with the material grade, thickness and annual volume. Balford engineers then check it against the process window - draw ratio, wall thickness, tolerances, blank and tooling route - and come back with what is feasible and what is not. An answer on this page cannot replace that review.
Upload a drawing for DFM reviewHow the DFM review worksRelated questions
- What is DFM and what does a manufacturability review cover?
- What information do you need for a metal stamping RFQ?
- How do I read a metal stamping tolerance chart?
- Which GD&T controls matter most on a drawn or stamped part?
- What PPAP level is normally submitted and what is included?
- What is first article inspection and when is it required?
This page is an engineering answer, not a quotation and not a dimensional acceptance. It is generated from Balford's published material and held to the verified company fact sheet.