Pick your industry and press Generate. Every one of these is a whole value stream — raw material to customer, with the demand, the calendar, every operation and the stock between them — so the map comes out complete and nothing has to be assumed. Then edit the numbers to your own, or describe your stream from scratch in the box below.

Helical planet carrier for an aerospace gearbox Machine shop · Aerospace Ten operations, a batch furnace, and 28 days of stock against an hour of work

What makes this a description the engine can draw from

1. The part, the plant and who supplies it — Names the stream after what it makes rather than what arrives at the door.
2. Demand and the working calendar — 1,200 a month over 20 days, two 8-hour shifts, breaks deducted — this is the whole of takt time. Leave it out and every pace figure is assumed.
3. Numbered operations — "Process 1: …" through "Process 10: …". One box per number, named the way you named it. A compound name like "Deburring & Aqueous Washing" stays one station.
4. A data box per station — Cycle time, setup or changeover, uptime, scrap, and who runs it. Stated per station, in any order, in whatever words you use for them.
5. Stock between the stations — How many pieces wait where. This, and only this, is where lead time comes from — 1,710 pieces here against 60 a day is 28.5 days.
6. What you do not know — Leave it out. Anything the engine has to supply is listed under the map as an assumption, so you can see what is yours and what is not.

At Apex Precision Aerospace Gearboxes Inc., the manufacturing value stream for the AX-904 Helical Planet Carrier Assembly begins with an overarching operational baseline dictated by an enterprise monthly customer demand of 1,200 units. To support this volume, the facility runs a strict operating calendar of 20 production days per month utilizing a two-shift daily model. Each 8-hour shift incorporates two scheduled 15-minute rest breaks and one 30-minute unpaid meal break, yielding a net available operating time per shift that dictates downstream pace. Material supply is structured around a push mechanism from the primary vendor, SteelCorp, which delivers raw forged steel billets (AISI 9310 alloy) via flatbed freight every Monday morning in recurring batches of 300 units, establishing an initial raw inventory staging buffer. Information flows through monthly electronic MRP releases to the supplier, while daily production dispatch schedules drive internal shop-floor routing across ten distinct manufacturing operations.

The physical value stream commences at Process 1: Raw Material Receiving & Ultrasonic Testing, where raw forgings enter a staging zone maintaining a buffer of 300 units of work-in-progress (WIP). At this station, a single operator—shared between receiving and testing duties—scans each billet for sub-surface metallurgical voids and micro-inclusions using automated probe arrays, recording a unit cycle time of 120 seconds, a batch setup time of 45 minutes for calibration, a system uptime of 98%, and a material rejection rate of 0.5%. Once cleared, a WIP inventory of 200 units accumulates in wire-mesh totes prior to Process 2: CNC Turning & Rough Boring (Op 10). Here, a single operator managing a dual-spindle lathe turns the outer diameters, faces the reference surfaces, and establishes the center bore, operating with a cycle time of 450 seconds per part, a jaw-swap setup time of 60 minutes, an operational uptime of 90%, and a scrap rate of 1.2%.

Moving further along the line, 150 units of WIP stage in front of Process 3: 5-Axis Precision Milling & Drilling (Op 20). A dedicated machinist loads the turned blanks into a high-precision machining center to carve weight-reduction pockets, drill planetary pin locations, and route internal lubrication channels; this complex geometry requires a cycle time of 780 seconds per unit, a fixture alignment setup time of 90 minutes, an uptime of 85%, and experiences a 2.1% scrap rate. The machining center is dedicated to this family, the 90-minute setup being a fixture change between part numbers within it. The stream then accumulates 180 WIP units at Process 4: Gear Hobbing & Spline Cutting (Op 30), where a gear-cutting specialist utilizes a CNC hobber to form external helical gear teeth and internal drive splines under high-pressure oil coolant. This operation runs with a cycle time of 620 seconds per unit, a cutter-change setup time of 120 minutes, an availability factor of 88%, and a scrap rate of 1.5%. The hobber is dedicated to this family, its cutter change falling between the gear part numbers within it.

Following metal removal, a queue of 100 WIP units sits before Process 5: Deburring & Aqueous Washing. Two manual operators perform magnified bench deburring to break sharp edges, followed by a three-stage ultrasonic wash to strip cutting fluids and particulate, executing this combined task on a cycle time of 300 seconds per unit, a bath chemistry setup time of 15 minutes, an uptime of 95%, and a scrap rate of 0.2%. Cleaned components then aggregate into a large staging queue of 240 WIP units to build a full furnace load for Process 6: Vacuum Carburizing & Heat Treatment. Operated as a decoupled thermal batch process by a heat-treat technician, the vacuum furnace carburizes and case-hardens the steel to 60 HRC; the cycle spans a total run time of 28,800 seconds per 120-unit load (yielding an effective processing time of 240 seconds per unit), requires a thermal stabilization setup time of 180 minutes, maintains 92% uptime, and incurs a 0.8% scrap rate.

After furnace cooling, a WIP buffer of 120 units stages before Process 7: CNC Cylindrical Grinding (Op 40), where one operator uses a precision grinder to correct thermal distortion on bearing journals and critical diameters. This post-heat-treat step operates with a cycle time of 540 seconds per unit, a wheel-dressing setup time of 75 minutes, an operational uptime of 87%, and a scrap rate of 1.8%. The grinder is dedicated to this family and dresses its wheel between part numbers within it. The stream then flows 90 WIP units into Process 8: Isotropic Superfinishing, where a single technician oversees chemical-mechanical vibratory barrel polishing to achieve micro-smooth gear teeth surfaces (Ra < 0.1 µm), running at a cycle time of 360 seconds per unit, a media-change setup time of 30 minutes, an uptime of 96%, and a low scrap rate of 0.1%.

Quality verification occurs at Process 9: CMM Quality Inspection & NDT, where 90 WIP units await evaluation. A certified inspector performs 100% magnetic particle testing for surface cracks followed by full coordinate measuring machine dimensional logging, requiring a cycle time of 420 seconds per unit, a program setup time of 20 minutes, a equipment uptime of 94%, and resulting in a final yield loss scrap rate of 0.5%. Finally, 60 WIP units reach Process 10: Final Packaging & Kitting, where a shipping clerk applies anti-corrosion oil, vacuum-seals parts into protective bags alongside compliance documentation, and packages them in custom foam inserts. This terminal process runs with a cycle time of 210 seconds per unit, a box and label setup time of 10 minutes, an uptime of 99%, and a zero scrap rate, ultimately feeding a finished goods staging buffer of 180 units that are dispatched daily via dedicated freight to fulfill the customer's delivery schedule.