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NETWORK MAP

Metal additive manufacturing suppliers

This page is a supply-network checklist for metal additive manufacturing suppliers that might print a 316L DMLS bracket. It maps process nodes — powder, DMLS print, HIP, machining, inspection, and freight — so a dual-source plan is more than two logos on a slide. It is not an ESG, carbon, or circular-economy statement.

Ask which nodes a candidate runs, which nodes it buys (including a lost-wax foundry if that is an allowed alternate), and which nodes remain unnamed. On-time language is treated as a question about published calendars and change-control, not as a KPI this website already audited. Surge capacity is a written overflow route, not a promise of empty machines.

Ask for a network map review

NODE LIST

Checks we walk before a second 316L source is named

  • A

    Powder origin

    Atomizer identity, 316L chemistry, PSD, and whether the print house may swap lots without a written change.

  • B

    Print ownership

    DMLS machine class, envelope (ask against published 250×250×320 mm class if that is your envelope), and whether the named site or a sub-tier actually runs the nest.

  • C

    Thermal and HIP path

    In-house versus toll HIP, furnace records, and who owns distortion risk after the cycle. Keep the as-built vs HIP density note on this node, not buried in marketing copy.

  • D

    Machining and finish

    Datum stock, coating, and whether a second shop can repeat the same fixture plan used on the DMLS bracket.

  • E

    Inspection and pack

    FAI method, CMM or scan, packing, and the Incoterm that moves the lot to the US destination.

  • F

    Overflow route

    A named alternate that can run the same revision — another DMLS cell, or a written investment-cast path if the drawing allows it — or an honest statement that no alternate is qualified yet.

TIER MARKS TO REQUEST

Supplier-tier files are still factory files

A tier list on this page is a request pattern. It is not an audited roster. Ask each candidate for the current file, the site name, and the expiry if the file carries one.

  • Tier-1 print site markPrint site file
  • Powder mill markPowder mill file
  • HIP toll markHIP toll file
  • Machine shop markMachine-shop file
  • Freight forwarder markFreight file

OPEN CHOICES

Specification choices that stay open until you close them

Domestic cell versus offshore cell

Domestic and nearshore advocates argue shorter DMLS iteration, easier audits, and simpler ITAR handling. Offshore advocates argue a wider multi-process base under one purchase order, including HIP and machining. We do not award either side. We ask you to name the IP, lead-time, and landed-cost weights before a second 316L quote is added.

Single qualified route versus dual route

A single DMLS route is easier to keep on one powder lot. A dual route that adds investment-cast 316L needs two parameter sets, two FAI packs, and two density methods. Do not accept an alternate alloy or machine class unless the drawing says the alternate is allowed.

Published calendar versus surge story

Ask for the booking calendar and the written overflow shop. A surge sentence without a named site is an open item. We will not convert it into a delivery date for the bracket nest.

What to verify before an alternative is accepted

Same revision, same 316L chemistry, same HIP and inspection method, and a written statement of what changed. If the alternative drops the as-built vs HIP density note or opens a tolerance, the compare sheet must show that change on its own line.

Request a metal additive manufacturing suppliers map review

Send the drawing revision, the nodes you already named for the 316L nest, and the US destination. We will ask factories to place themselves on that map and to list the nodes they cannot cover, including HIP and foundry alternates.

Submit network questions