DFM, tolerances and quality
What is your reject rate?
Answer
quality_claims: {"tolerance_0_01mm":{"status":"conditional","text":"0.01 mm on selected critical machined features where process, geometry, material and inspection conditions allow; confirmed from the drawing.","scope":"drawing-confirmed","confirmed_on":"2026-10-20"},"reject_rate":{"status":"no_formal_kpi","note":"Owner confirmed there is no formal rejection-rate KPI, so no percentage is published. Wording used: recorded per lot and reviewed in quality routines."},"delivery":{"status":"monitored_against_schedule","note":"No 'zero late deliveries' claim published."},"quote_response":{"status":"typically_24h","note":"Stated as typical, China Standard Time."},"dfm_feedback":{"status":"after_review","note":"Issued after the engineering review; no fixed hour promise."}} contact_email: "shawn@balford.net"
Sources
- Verified company facts and boundariesquality_claims: {"tolerance_0_01mm":{"status":"conditional","text":"0.01 mm on selected critical machined features where process, geometry, material and inspection conditions allow; confirmed from the drawing.","scope":"drawing-confirmed","confirmed_on":"2026-10-20"},"reject_rate":{"status":"no_form...
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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.