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Technological documents

Lessons 14 · 1 lessons · O. A. Qo‘ysinov, O‘. O. Tohirov, D. N. Mamatov, D. F. Aripova. Labour education (Mehnat ta’limi), Grade 9: methodical guide for teachers. Delta-Print, Tashkent, 2017. Note: this is a teacher’s guide, not a student textbook (lesson plans for the “Technology and design”, “Service” and “Basics of agriculture” directions). The course is built from the lesson-plan topics of the “Technology and design” direction; the “Iroqi” skullcap lesson comes from the “Service” direction, and lesson 25 (joining parts) is written from the topic listed in the guide’s calendar plan.
14

Technological documents: route map and operation card

Teacher’s guide: pp. 51–52
GoalKnow the kinds of technological documents, especially the route map and the operation card, their purpose and difference.
New words
technological document · texnologik hujjatroute map · marshrut xaritasioperation card · operatsiya kartasiblank (workpiece) · tayyorlanma
Explanation

A technological document is a paper or electronic document that sets out in writing in what order, with what and under what conditions an item is made. An enterprise uses several kinds: the route map, the operation card, the sketch card, the technological instruction and the list (statement) of tools and equipment. No production can work without the route map and the operation card, while the others are mainly added when items are made one at a time or in small batches. Think of the route map as the “road map” of the raw material: it shows from start to finish which operations, machines and tools a blank passes through to become a finished product. The operation card explains one operation broken into small steps, “transitions”: for each step it states which tool, which measuring instrument and which working regime (for example rotation speed) is needed. A worker does not change the order in the document at will: this is called technological discipline, and it is the guarantee of quality and safety.

Worked examples
In the route map for a wooden handle: 1) cutting, 2) planing, 3) turning, 4) sanding, 5) varnishing — all operations written one after another.
The operation card for “2) planing”: transition 1 — fix the board in the vice; transition 2 — plane the face; transition 3 — measure the thickness; tools: plane, ruler.
Class activity

Document contest: the teacher gives a list of operations for an item. Groups write it as a route map, then write one operation as a card. Discuss which document is more detailed.

Practice
1
Name at least three of the five kinds of technological documents.
2
What does a route map show?
3
An item consists of 7 operations of 6 minutes each. How many minutes in total?
4
How does the operation card differ from the route map? Why is it needed?